18915156

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^2\times {\mathrm{3109}}^1$

素因数の和:3145

約数の個数: 54

約数和(自身を含む): 51790830

約数和(自身を除く): 32875674

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 169, 234, 338, 468, 507, 676, 1014, 1521, 2028, 3042, 3109, 6084, 6218, 9327, 12436, 18654, 27981, 37308, 40417, 55962, 80834, 111924, 121251, 161668, 242502, 363753, 485004, 525421, 727506, 1050842, 1455012, 1576263, 2101684, 3152526, 4728789, 6305052, 9457578, 18915156]

約数ペア:

[(1, 18915156), (2, 9457578), (3, 6305052), (4, 4728789), (6, 3152526), (9, 2101684), (12, 1576263), (13, 1455012), (18, 1050842), (26, 727506), (36, 525421), (39, 485004), (52, 363753), (78, 242502), (117, 161668), (156, 121251), (169, 111924), (234, 80834), (338, 55962), (468, 40417), (507, 37308), (676, 27981), (1014, 18654), (1521, 12436), (2028, 9327), (3042, 6218), (3109, 6084)]