21260632

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1223}}^1$

素因数の和:1323

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 20379848

約数列:

[1, 2, 4, 8, 41, 53, 82, 106, 164, 212, 328, 424, 1223, 2173, 2446, 4346, 4892, 8692, 9784, 17384, 50143, 64819, 100286, 129638, 200572, 259276, 401144, 518552, 2657579, 5315158, 10630316, 21260632]

約数ペア:

[(1, 21260632), (2, 10630316), (4, 5315158), (8, 2657579), (41, 518552), (53, 401144), (82, 259276), (106, 200572), (164, 129638), (212, 100286), (328, 64819), (424, 50143), (1223, 17384), (2173, 9784), (2446, 8692), (4346, 4892)]