21665752

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{9371}}^1$

素因数の和:9411

約数の個数: 24

約数和(自身を含む): 43158060

約数和(自身を除く): 21492308

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 9371, 18742, 37484, 74968, 159307, 318614, 637228, 1274456, 2708219, 5416438, 10832876, 21665752]

約数ペア:

[(1, 21665752), (2, 10832876), (4, 5416438), (8, 2708219), (17, 1274456), (34, 637228), (68, 318614), (136, 159307), (289, 74968), (578, 37484), (1156, 18742), (2312, 9371)]