19213808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{70639}}^1$

素因数の和:70664

約数の個数: 20

約数和(自身を含む): 39417120

約数和(自身を除く): 20203312

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 70639, 141278, 282556, 565112, 1130224, 1200863, 2401726, 4803452, 9606904, 19213808]

約数ペア:

[(1, 19213808), (2, 9606904), (4, 4803452), (8, 2401726), (16, 1200863), (17, 1130224), (34, 565112), (68, 282556), (136, 141278), (272, 70639)]