1309329

素因数分解:

$3^2\times 7^2\times {\mathrm{2969}}^1$

素因数の和:2989

約数の個数: 18

約数和(自身を含む): 2200770

約数和(自身を除く): 891441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 2969, 8907, 20783, 26721, 62349, 145481, 187047, 436443, 1309329]

約数ペア:

[(1, 1309329), (3, 436443), (7, 187047), (9, 145481), (21, 62349), (49, 26721), (63, 20783), (147, 8907), (441, 2969)]