21767020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{607}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 50254848

約数和(自身を除く): 28487828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 163, 220, 326, 607, 652, 815, 1214, 1630, 1793, 2428, 3035, 3260, 3586, 6070, 6677, 7172, 8965, 12140, 13354, 17930, 26708, 33385, 35860, 66770, 98941, 133540, 197882, 395764, 494705, 989410, 1088351, 1978820, 2176702, 4353404, 5441755, 10883510, 21767020]

約数ペア:

[(1, 21767020), (2, 10883510), (4, 5441755), (5, 4353404), (10, 2176702), (11, 1978820), (20, 1088351), (22, 989410), (44, 494705), (55, 395764), (110, 197882), (163, 133540), (220, 98941), (326, 66770), (607, 35860), (652, 33385), (815, 26708), (1214, 17930), (1630, 13354), (1793, 12140), (2428, 8965), (3035, 7172), (3260, 6677), (3586, 6070)]