21670116

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4481}}^1$

素因数の和:4532

約数の個数: 48

約数和(自身を含む): 56222208

約数和(自身を除く): 34552092

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4481, 4836, 8962, 13443, 17924, 26886, 53772, 58253, 116506, 138911, 174759, 233012, 277822, 349518, 416733, 555644, 699036, 833466, 1666932, 1805843, 3611686, 5417529, 7223372, 10835058, 21670116]

約数ペア:

[(1, 21670116), (2, 10835058), (3, 7223372), (4, 5417529), (6, 3611686), (12, 1805843), (13, 1666932), (26, 833466), (31, 699036), (39, 555644), (52, 416733), (62, 349518), (78, 277822), (93, 233012), (124, 174759), (156, 138911), (186, 116506), (372, 58253), (403, 53772), (806, 26886), (1209, 17924), (1612, 13443), (2418, 8962), (4481, 4836)]