21996338

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{6361}}^1$

素因数の和:6402

約数の個数: 32

約数和(自身を含む): 42752640

約数和(自身を除く): 20756302

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 494, 1729, 3458, 6361, 12722, 44527, 82693, 89054, 120859, 165386, 241718, 578851, 846013, 1157702, 1571167, 1692026, 3142334, 10998169, 21996338]

約数ペア:

[(1, 21996338), (2, 10998169), (7, 3142334), (13, 1692026), (14, 1571167), (19, 1157702), (26, 846013), (38, 578851), (91, 241718), (133, 165386), (182, 120859), (247, 89054), (266, 82693), (494, 44527), (1729, 12722), (3458, 6361)]