21063367780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^2\times {\mathrm{599}}^1$

素因数の和:906

約数の個数: 144

約数和(自身を含む): 54926726400

約数和(自身を除く): 33863358620

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 139, 140, 182, 260, 278, 364, 455, 556, 599, 695, 910, 973, 1198, 1390, 1807, 1820, 1946, 2396, 2780, 2995, 3614, 3892, 4193, 4865, 5990, 7228, 7787, 8386, 9035, 9730, 11980, 12649, 15574, 16772, 18070, 19321, 19460, 20965, 25298, 31148, 36140, 38642, 38935, 41930, 50596, 54509, 63245, 77284, 77870, 83261, 83860, 96605, 109018, 126490, 135247, 155740, 166522, 193210, 218036, 251173, 252980, 270494, 272545, 333044, 386420, 416305, 502346, 540988, 545090, 582827, 676235, 832610, 1004692, 1082393, 1090180, 1165654, 1255865, 1352470, 1665220, 1758211, 2164786, 2331308, 2511730, 2704940, 2914135, 3516422, 4329572, 5023460, 5411965, 5828270, 7032844, 7576751, 8791055, 10823930, 11573279, 11656540, 15153502, 17582110, 21647860, 23146558, 30307004, 35164220, 37883755, 46293116, 57866395, 75767510, 81012953, 115732790, 150452627, 151535020, 162025906, 231465580, 300905254, 324051812, 405064765, 601810508, 752263135, 810129530, 1053168389, 1504526270, 1620259060, 2106336778, 3009052540, 4212673556, 5265841945, 10531683890, 21063367780]

約数ペア:

[(1, 21063367780), (2, 10531683890), (4, 5265841945), (5, 4212673556), (7, 3009052540), (10, 2106336778), (13, 1620259060), (14, 1504526270), (20, 1053168389), (26, 810129530), (28, 752263135), (35, 601810508), (52, 405064765), (65, 324051812), (70, 300905254), (91, 231465580), (130, 162025906), (139, 151535020), (140, 150452627), (182, 115732790), (260, 81012953), (278, 75767510), (364, 57866395), (455, 46293116), (556, 37883755), (599, 35164220), (695, 30307004), (910, 23146558), (973, 21647860), (1198, 17582110), (1390, 15153502), (1807, 11656540), (1820, 11573279), (1946, 10823930), (2396, 8791055), (2780, 7576751), (2995, 7032844), (3614, 5828270), (3892, 5411965), (4193, 5023460), (4865, 4329572), (5990, 3516422), (7228, 2914135), (7787, 2704940), (8386, 2511730), (9035, 2331308), (9730, 2164786), (11980, 1758211), (12649, 1665220), (15574, 1352470), (16772, 1255865), (18070, 1165654), (19321, 1090180), (19460, 1082393), (20965, 1004692), (25298, 832610), (31148, 676235), (36140, 582827), (38642, 545090), (38935, 540988), (41930, 502346), (50596, 416305), (54509, 386420), (63245, 333044), (77284, 272545), (77870, 270494), (83261, 252980), (83860, 251173), (96605, 218036), (109018, 193210), (126490, 166522), (135247, 155740)]