20787156

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{44417}}^1$

素因数の和:44440

約数の個数: 36

約数和(自身を含む): 56588532

約数和(自身を除く): 35801376

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 44417, 88834, 133251, 177668, 266502, 399753, 533004, 577421, 799506, 1154842, 1599012, 1732263, 2309684, 3464526, 5196789, 6929052, 10393578, 20787156]

約数ペア:

[(1, 20787156), (2, 10393578), (3, 6929052), (4, 5196789), (6, 3464526), (9, 2309684), (12, 1732263), (13, 1599012), (18, 1154842), (26, 799506), (36, 577421), (39, 533004), (52, 399753), (78, 266502), (117, 177668), (156, 133251), (234, 88834), (468, 44417)]