21325576

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 41529600

約数和(自身を除く): 20204024

約数列:

[1, 2, 4, 8, 41, 79, 82, 158, 164, 316, 328, 632, 823, 1646, 3239, 3292, 6478, 6584, 12956, 25912, 33743, 65017, 67486, 130034, 134972, 260068, 269944, 520136, 2665697, 5331394, 10662788, 21325576]

約数ペア:

[(1, 21325576), (2, 10662788), (4, 5331394), (8, 2665697), (41, 520136), (79, 269944), (82, 260068), (158, 134972), (164, 130034), (316, 67486), (328, 65017), (632, 33743), (823, 25912), (1646, 12956), (3239, 6584), (3292, 6478)]