21519722

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12917}}^1$

素因数の和:12950

約数の個数: 24

約数和(自身を含む): 39761604

約数和(自身を除く): 18241882

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12917, 25834, 90419, 180838, 219589, 439178, 632933, 1265866, 1537123, 3074246, 10759861, 21519722]

約数ペア:

[(1, 21519722), (2, 10759861), (7, 3074246), (14, 1537123), (17, 1265866), (34, 632933), (49, 439178), (98, 219589), (119, 180838), (238, 90419), (833, 25834), (1666, 12917)]