18711225

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6397}}^1$

素因数の和:6426

約数の個数: 36

約数和(自身を含む): 36097516

約数和(自身を除く): 17386291

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6397, 19191, 31985, 57573, 83161, 95955, 159925, 249483, 287865, 415805, 479775, 748449, 1247415, 1439325, 2079025, 3742245, 6237075, 18711225]

約数ペア:

[(1, 18711225), (3, 6237075), (5, 3742245), (9, 2079025), (13, 1439325), (15, 1247415), (25, 748449), (39, 479775), (45, 415805), (65, 287865), (75, 249483), (117, 159925), (195, 95955), (225, 83161), (325, 57573), (585, 31985), (975, 19191), (2925, 6397)]