21394185

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 35696640

約数和(自身を除く): 14302455

約数列:

[1, 3, 5, 15, 31, 93, 139, 155, 331, 417, 465, 695, 993, 1655, 2085, 4309, 4965, 10261, 12927, 21545, 30783, 46009, 51305, 64635, 138027, 153915, 230045, 690135, 1426279, 4278837, 7131395, 21394185]

約数ペア:

[(1, 21394185), (3, 7131395), (5, 4278837), (15, 1426279), (31, 690135), (93, 230045), (139, 153915), (155, 138027), (331, 64635), (417, 51305), (465, 46009), (695, 30783), (993, 21545), (1655, 12927), (2085, 10261), (4309, 4965)]