20218088891

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{99497}}^1$

素因数の和:99564

約数の個数: 48

約数和(自身を含む): 28583785440

約数和(自身を除く): 8365696549

約数列:

[1, 7, 11, 13, 29, 49, 77, 91, 143, 203, 319, 377, 539, 637, 1001, 1421, 2233, 2639, 4147, 7007, 15631, 18473, 29029, 99497, 203203, 696479, 1094467, 1293461, 2885413, 4875353, 7661269, 9054227, 14228071, 20197891, 31739543, 37510369, 53628883, 63379589, 99596497, 141385237, 222176801, 262572583, 412614059, 697175479, 1555237607, 1838008081, 2888298413, 20218088891]

約数ペア:

[(1, 20218088891), (7, 2888298413), (11, 1838008081), (13, 1555237607), (29, 697175479), (49, 412614059), (77, 262572583), (91, 222176801), (143, 141385237), (203, 99596497), (319, 63379589), (377, 53628883), (539, 37510369), (637, 31739543), (1001, 20197891), (1421, 14228071), (2233, 9054227), (2639, 7661269), (4147, 4875353), (7007, 2885413), (15631, 1293461), (18473, 1094467), (29029, 696479), (99497, 203203)]