21356548

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{1277}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 38754072

約数和(自身を除く): 17397524

約数列:

[1, 2, 4, 37, 74, 113, 148, 226, 452, 1277, 2554, 4181, 5108, 8362, 16724, 47249, 94498, 144301, 188996, 288602, 577204, 5339137, 10678274, 21356548]

約数ペア:

[(1, 21356548), (2, 10678274), (4, 5339137), (37, 577204), (74, 288602), (113, 188996), (148, 144301), (226, 94498), (452, 47249), (1277, 16724), (2554, 8362), (4181, 5108)]