18489584

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{60821}}^1$

素因数の和:60848

約数の個数: 20

約数和(自身を含む): 37709640

約数和(自身を除く): 19220056

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 60821, 121642, 243284, 486568, 973136, 1155599, 2311198, 4622396, 9244792, 18489584]

約数ペア:

[(1, 18489584), (2, 9244792), (4, 4622396), (8, 2311198), (16, 1155599), (19, 973136), (38, 486568), (76, 243284), (152, 121642), (304, 60821)]