21175948

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{3499}}^1$

素因数の和:3609

約数の個数: 24

約数和(自身を含む): 39690000

約数和(自身を除く): 18514052

約数列:

[1, 2, 4, 17, 34, 68, 89, 178, 356, 1513, 3026, 3499, 6052, 6998, 13996, 59483, 118966, 237932, 311411, 622822, 1245644, 5293987, 10587974, 21175948]

約数ペア:

[(1, 21175948), (2, 10587974), (4, 5293987), (17, 1245644), (34, 622822), (68, 311411), (89, 237932), (178, 118966), (356, 59483), (1513, 13996), (3026, 6998), (3499, 6052)]