21581298

素因数分解:

$2^1\times 3^2\times {\mathrm{1087}}^1\times {\mathrm{1103}}^1$

素因数の和:2198

約数の個数: 24

約数和(自身を含む): 46844928

約数和(自身を除く): 25263630

約数列:

[1, 2, 3, 6, 9, 18, 1087, 1103, 2174, 2206, 3261, 3309, 6522, 6618, 9783, 9927, 19566, 19854, 1198961, 2397922, 3596883, 7193766, 10790649, 21581298]

約数ペア:

[(1, 21581298), (2, 10790649), (3, 7193766), (6, 3596883), (9, 2397922), (18, 1198961), (1087, 19854), (1103, 19566), (2174, 9927), (2206, 9783), (3261, 6618), (3309, 6522)]