1640301309

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{108421}}^1$

素因数の和:108509

約数の個数: 18

約数和(自身を含む): 2428544378

約数和(自身を除く): 788243069

約数列:

[1, 3, 9, 41, 123, 369, 1681, 5043, 15129, 108421, 325263, 975789, 4445261, 13335783, 40007349, 182255701, 546767103, 1640301309]

約数ペア:

[(1, 1640301309), (3, 546767103), (9, 182255701), (41, 40007349), (123, 13335783), (369, 4445261), (1681, 975789), (5043, 325263), (15129, 108421)]