21417688

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157483}}^1$

素因数の和:157506

約数の個数: 16

約数和(自身を含む): 42520680

約数和(自身を除く): 21102992

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157483, 314966, 629932, 1259864, 2677211, 5354422, 10708844, 21417688]

約数ペア:

[(1, 21417688), (2, 10708844), (4, 5354422), (8, 2677211), (17, 1259864), (34, 629932), (68, 314966), (136, 157483)]