20824804

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{743}}^1$

素因数の和:785

約数の個数: 72

約数和(自身を含む): 49871808

約数和(自身を除く): 29047004

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 743, 1001, 1078, 1274, 1486, 2002, 2156, 2548, 2972, 4004, 5201, 7007, 8173, 9659, 10402, 14014, 16346, 19318, 20804, 28028, 32692, 36407, 38636, 57211, 67613, 72814, 106249, 114422, 135226, 145628, 212498, 228844, 270452, 400477, 424996, 473291, 743743, 800954, 946582, 1487486, 1601908, 1893164, 2974972, 5206201, 10412402, 20824804]

約数ペア:

[(1, 20824804), (2, 10412402), (4, 5206201), (7, 2974972), (11, 1893164), (13, 1601908), (14, 1487486), (22, 946582), (26, 800954), (28, 743743), (44, 473291), (49, 424996), (52, 400477), (77, 270452), (91, 228844), (98, 212498), (143, 145628), (154, 135226), (182, 114422), (196, 106249), (286, 72814), (308, 67613), (364, 57211), (539, 38636), (572, 36407), (637, 32692), (743, 28028), (1001, 20804), (1078, 19318), (1274, 16346), (1486, 14014), (2002, 10402), (2156, 9659), (2548, 8173), (2972, 7007), (4004, 5201)]