21245889848

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{823}}^1\times {\mathrm{7487}}^1$

素因数の和:8747

約数の個数: 32

約数和(自身を含む): 39982325760

約数和(自身を除く): 18736435912

約数列:

[1, 2, 4, 8, 431, 823, 862, 1646, 1724, 3292, 3448, 6584, 7487, 14974, 29948, 59896, 354713, 709426, 1418852, 2837704, 3226897, 6161801, 6453794, 12323602, 12907588, 24647204, 25815176, 49294408, 2655736231, 5311472462, 10622944924, 21245889848]

約数ペア:

[(1, 21245889848), (2, 10622944924), (4, 5311472462), (8, 2655736231), (431, 49294408), (823, 25815176), (862, 24647204), (1646, 12907588), (1724, 12323602), (3292, 6453794), (3448, 6161801), (6584, 3226897), (7487, 2837704), (14974, 1418852), (29948, 709426), (59896, 354713)]