18557908

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4003}}^1$

素因数の和:4087

約数の個数: 24

約数和(自身を含む): 34754720

約数和(自身を除く): 16196812

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4003, 4636, 8006, 16012, 76057, 152114, 244183, 304228, 488366, 976732, 4639477, 9278954, 18557908]

約数ペア:

[(1, 18557908), (2, 9278954), (4, 4639477), (19, 976732), (38, 488366), (61, 304228), (76, 244183), (122, 152114), (244, 76057), (1159, 16012), (2318, 8006), (4003, 4636)]