21957628

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{6481}}^1$

素因数の和:6514

約数の個数: 36

約数和(自身を含む): 48277936

約数和(自身を除く): 26320308

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 121, 154, 242, 308, 484, 847, 1694, 3388, 6481, 12962, 25924, 45367, 71291, 90734, 142582, 181468, 285164, 499037, 784201, 998074, 1568402, 1996148, 3136804, 5489407, 10978814, 21957628]

約数ペア:

[(1, 21957628), (2, 10978814), (4, 5489407), (7, 3136804), (11, 1996148), (14, 1568402), (22, 998074), (28, 784201), (44, 499037), (77, 285164), (121, 181468), (154, 142582), (242, 90734), (308, 71291), (484, 45367), (847, 25924), (1694, 12962), (3388, 6481)]