18647992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2381}}^1$

素因数の和:2487

約数の個数: 32

約数和(自身を含む): 38588400

約数和(自身を除く): 19940408

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2381, 3916, 4762, 7832, 9524, 19048, 26191, 52382, 104764, 209528, 211909, 423818, 847636, 1695272, 2330999, 4661998, 9323996, 18647992]

約数ペア:

[(1, 18647992), (2, 9323996), (4, 4661998), (8, 2330999), (11, 1695272), (22, 847636), (44, 423818), (88, 211909), (89, 209528), (178, 104764), (356, 52382), (712, 26191), (979, 19048), (1958, 9524), (2381, 7832), (3916, 4762)]