21576824

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 41806800

約数和(自身を除く): 20229976

約数列:

[1, 2, 4, 8, 41, 82, 157, 164, 314, 328, 419, 628, 838, 1256, 1676, 3352, 6437, 12874, 17179, 25748, 34358, 51496, 65783, 68716, 131566, 137432, 263132, 526264, 2697103, 5394206, 10788412, 21576824]

約数ペア:

[(1, 21576824), (2, 10788412), (4, 5394206), (8, 2697103), (41, 526264), (82, 263132), (157, 137432), (164, 131566), (314, 68716), (328, 65783), (419, 51496), (628, 34358), (838, 25748), (1256, 17179), (1676, 12874), (3352, 6437)]