40720323

素因数分解:

$3^1\times 7^2\times {\mathrm{439}}^1\times {\mathrm{631}}^1$

素因数の和:1087

約数の個数: 24

約数和(自身を含む): 63402240

約数和(自身を除く): 22681917

約数列:

[1, 3, 7, 21, 49, 147, 439, 631, 1317, 1893, 3073, 4417, 9219, 13251, 21511, 30919, 64533, 92757, 277009, 831027, 1939063, 5817189, 13573441, 40720323]

約数ペア:

[(1, 40720323), (3, 13573441), (7, 5817189), (21, 1939063), (49, 831027), (147, 277009), (439, 92757), (631, 64533), (1317, 30919), (1893, 21511), (3073, 13251), (4417, 9219)]