21549610

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3911}}^1$

素因数の和:3966

約数の個数: 32

約数和(自身を含む): 42249600

約数和(自身を除く): 20699990

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2755, 3911, 5510, 7822, 19555, 39110, 74309, 113419, 148618, 226838, 371545, 567095, 743090, 1134190, 2154961, 4309922, 10774805, 21549610]

約数ペア:

[(1, 21549610), (2, 10774805), (5, 4309922), (10, 2154961), (19, 1134190), (29, 743090), (38, 567095), (58, 371545), (95, 226838), (145, 148618), (190, 113419), (290, 74309), (551, 39110), (1102, 19555), (2755, 7822), (3911, 5510)]