20717254

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:600

約数の個数: 24

約数和(自身を含む): 33531768

約数和(自身を除く): 12814514

約数列:

[1, 2, 17, 34, 73, 146, 289, 491, 578, 982, 1241, 2482, 8347, 16694, 21097, 35843, 42194, 71686, 141899, 283798, 609331, 1218662, 10358627, 20717254]

約数ペア:

[(1, 20717254), (2, 10358627), (17, 1218662), (34, 609331), (73, 283798), (146, 141899), (289, 71686), (491, 42194), (578, 35843), (982, 21097), (1241, 16694), (2482, 8347)]