18241925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:138

約数の個数: 36

約数和(自身を含む): 25646796

約数和(自身を除く): 7404871

約数列:

[1, 5, 13, 25, 37, 41, 65, 185, 205, 325, 481, 533, 925, 1025, 1369, 1517, 2405, 2665, 6845, 7585, 12025, 13325, 17797, 19721, 34225, 37925, 56129, 88985, 98605, 280645, 444925, 493025, 729677, 1403225, 3648385, 18241925]

約数ペア:

[(1, 18241925), (5, 3648385), (13, 1403225), (25, 729677), (37, 493025), (41, 444925), (65, 280645), (185, 98605), (205, 88985), (325, 56129), (481, 37925), (533, 34225), (925, 19721), (1025, 17797), (1369, 13325), (1517, 12025), (2405, 7585), (2665, 6845)]