21870200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9941}}^1$

素因数の和:9968

約数の個数: 48

約数和(自身を含む): 55476360

約数和(自身を除く): 33606160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9941, 19882, 39764, 49705, 79528, 99410, 109351, 198820, 218702, 248525, 397640, 437404, 497050, 546755, 874808, 994100, 1093510, 1988200, 2187020, 2733775, 4374040, 5467550, 10935100, 21870200]

約数ペア:

[(1, 21870200), (2, 10935100), (4, 5467550), (5, 4374040), (8, 2733775), (10, 2187020), (11, 1988200), (20, 1093510), (22, 994100), (25, 874808), (40, 546755), (44, 497050), (50, 437404), (55, 397640), (88, 248525), (100, 218702), (110, 198820), (200, 109351), (220, 99410), (275, 79528), (440, 49705), (550, 39764), (1100, 19882), (2200, 9941)]