18217772

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{379}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 32654160

約数和(自身を除く): 14436388

約数列:

[1, 2, 4, 61, 122, 197, 244, 379, 394, 758, 788, 1516, 12017, 23119, 24034, 46238, 48068, 74663, 92476, 149326, 298652, 4554443, 9108886, 18217772]

約数ペア:

[(1, 18217772), (2, 9108886), (4, 4554443), (61, 298652), (122, 149326), (197, 92476), (244, 74663), (379, 48068), (394, 46238), (758, 24034), (788, 23119), (1516, 12017)]