638615341

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{149}}^1\times {\mathrm{3623}}^1$

素因数の和:3805

約数の個数: 24

約数和(自身を含む): 795830400

約数和(自身を除く): 157215059

約数列:

[1, 7, 13, 91, 149, 169, 1043, 1183, 1937, 3623, 13559, 25181, 25361, 47099, 176267, 329693, 539827, 612287, 3778789, 4286009, 7017751, 49124257, 91230763, 638615341]

約数ペア:

[(1, 638615341), (7, 91230763), (13, 49124257), (91, 7017751), (149, 4286009), (169, 3778789), (1043, 612287), (1183, 539827), (1937, 329693), (3623, 176267), (13559, 47099), (25181, 25361)]