21041528

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64151}}^1$

素因数の和:64198

約数の個数: 16

約数和(自身を含む): 40415760

約数和(自身を除く): 19374232

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64151, 128302, 256604, 513208, 2630191, 5260382, 10520764, 21041528]

約数ペア:

[(1, 21041528), (2, 10520764), (4, 5260382), (8, 2630191), (41, 513208), (82, 256604), (164, 128302), (328, 64151)]