21489429

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{23957}}^1$

素因数の和:23996

約数の個数: 16

約数和(自身を含む): 32199552

約数和(自身を除く): 10710123

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 23957, 71871, 311441, 551011, 934323, 1653033, 7163143, 21489429]

約数ペア:

[(1, 21489429), (3, 7163143), (13, 1653033), (23, 934323), (39, 551011), (69, 311441), (299, 71871), (897, 23957)]