21912618

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{599}}^1$

素因数の和:691

約数の個数: 64

約数和(自身を含む): 54835200

約数和(自身を除く): 32922582

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 67, 78, 91, 134, 182, 201, 273, 402, 469, 546, 599, 871, 938, 1198, 1407, 1742, 1797, 2613, 2814, 3594, 4193, 5226, 6097, 7787, 8386, 12194, 12579, 15574, 18291, 23361, 25158, 36582, 40133, 46722, 54509, 80266, 109018, 120399, 163527, 240798, 280931, 327054, 521729, 561862, 842793, 1043458, 1565187, 1685586, 3130374, 3652103, 7304206, 10956309, 21912618]

約数ペア:

[(1, 21912618), (2, 10956309), (3, 7304206), (6, 3652103), (7, 3130374), (13, 1685586), (14, 1565187), (21, 1043458), (26, 842793), (39, 561862), (42, 521729), (67, 327054), (78, 280931), (91, 240798), (134, 163527), (182, 120399), (201, 109018), (273, 80266), (402, 54509), (469, 46722), (546, 40133), (599, 36582), (871, 25158), (938, 23361), (1198, 18291), (1407, 15574), (1742, 12579), (1797, 12194), (2613, 8386), (2814, 7787), (3594, 6097), (4193, 5226)]