17721210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{45439}}^1$

素因数の和:45462

約数の個数: 32

約数和(自身を含む): 45803520

約数和(自身を除く): 28082310

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 45439, 90878, 136317, 227195, 272634, 454390, 590707, 681585, 1181414, 1363170, 1772121, 2953535, 3544242, 5907070, 8860605, 17721210]

約数ペア:

[(1, 17721210), (2, 8860605), (3, 5907070), (5, 3544242), (6, 2953535), (10, 1772121), (13, 1363170), (15, 1181414), (26, 681585), (30, 590707), (39, 454390), (65, 272634), (78, 227195), (130, 136317), (195, 90878), (390, 45439)]