219793456

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{335051}}^1$

素因数の和:335100

約数の個数: 20

約数和(自身を含む): 436237704

約数和(自身を除く): 216444248

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 335051, 670102, 1340204, 2680408, 5360816, 13737091, 27474182, 54948364, 109896728, 219793456]

約数ペア:

[(1, 219793456), (2, 109896728), (4, 54948364), (8, 27474182), (16, 13737091), (41, 5360816), (82, 2680408), (164, 1340204), (328, 670102), (656, 335051)]