21684190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6359}}^1$

素因数の和:6408

約数の個数: 32

約数和(自身を含む): 43960320

約数和(自身を除く): 22276130

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 6359, 12718, 31795, 63590, 69949, 139898, 197129, 349745, 394258, 699490, 985645, 1971290, 2168419, 4336838, 10842095, 21684190]

約数ペア:

[(1, 21684190), (2, 10842095), (5, 4336838), (10, 2168419), (11, 1971290), (22, 985645), (31, 699490), (55, 394258), (62, 349745), (110, 197129), (155, 139898), (310, 69949), (341, 63590), (682, 31795), (1705, 12718), (3410, 6359)]