21436388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1319}}^1$

素因数の和:1579

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 18480412

約数列:

[1, 2, 4, 17, 34, 68, 239, 478, 956, 1319, 2638, 4063, 5276, 8126, 16252, 22423, 44846, 89692, 315241, 630482, 1260964, 5359097, 10718194, 21436388]

約数ペア:

[(1, 21436388), (2, 10718194), (4, 5359097), (17, 1260964), (34, 630482), (68, 315241), (239, 89692), (478, 44846), (956, 22423), (1319, 16252), (2638, 8126), (4063, 5276)]