19298620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{87721}}^1$

素因数の和:87741

約数の個数: 24

約数和(自身を含む): 44211888

約数和(自身を除く): 24913268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 87721, 175442, 350884, 438605, 877210, 964931, 1754420, 1929862, 3859724, 4824655, 9649310, 19298620]

約数ペア:

[(1, 19298620), (2, 9649310), (4, 4824655), (5, 3859724), (10, 1929862), (11, 1754420), (20, 964931), (22, 877210), (44, 438605), (55, 350884), (110, 175442), (220, 87721)]