21693790

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{457}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 40362624

約数和(自身を除く): 18668834

約数列:

[1, 2, 5, 10, 47, 94, 101, 202, 235, 457, 470, 505, 914, 1010, 2285, 4570, 4747, 9494, 21479, 23735, 42958, 46157, 47470, 92314, 107395, 214790, 230785, 461570, 2169379, 4338758, 10846895, 21693790]

約数ペア:

[(1, 21693790), (2, 10846895), (5, 4338758), (10, 2169379), (47, 461570), (94, 230785), (101, 214790), (202, 107395), (235, 92314), (457, 47470), (470, 46157), (505, 42958), (914, 23735), (1010, 21479), (2285, 9494), (4570, 4747)]