21310664

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{50261}}^1$

素因数の和:50320

約数の個数: 16

約数和(自身を含む): 40712220

約数和(自身を除く): 19401556

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 50261, 100522, 201044, 402088, 2663833, 5327666, 10655332, 21310664]

約数ペア:

[(1, 21310664), (2, 10655332), (4, 5327666), (8, 2663833), (53, 402088), (106, 201044), (212, 100522), (424, 50261)]