21905264

素因数分解:

$2^4\times {\mathrm{709}}^1\times {\mathrm{1931}}^1$

素因数の和:2648

約数の個数: 20

約数和(自身を含む): 42523320

約数和(自身を除く): 20618056

約数列:

[1, 2, 4, 8, 16, 709, 1418, 1931, 2836, 3862, 5672, 7724, 11344, 15448, 30896, 1369079, 2738158, 5476316, 10952632, 21905264]

約数ペア:

[(1, 21905264), (2, 10952632), (4, 5476316), (8, 2738158), (16, 1369079), (709, 30896), (1418, 15448), (1931, 11344), (2836, 7724), (3862, 5672)]