21214436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{1399}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 39513600

約数和(自身を除く): 18299164

約数列:

[1, 2, 4, 17, 34, 68, 223, 446, 892, 1399, 2798, 3791, 5596, 7582, 15164, 23783, 47566, 95132, 311977, 623954, 1247908, 5303609, 10607218, 21214436]

約数ペア:

[(1, 21214436), (2, 10607218), (4, 5303609), (17, 1247908), (34, 623954), (68, 311977), (223, 95132), (446, 47566), (892, 23783), (1399, 15164), (2798, 7582), (3791, 5596)]