220721421

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{18899}}^1$

素因数の和:19148

約数の個数: 16

約数和(自身を含む): 312984000

約数和(自身を除く): 92262579

約数列:

[1, 3, 17, 51, 229, 687, 3893, 11679, 18899, 56697, 321283, 963849, 4327871, 12983613, 73573807, 220721421]

約数ペア:

[(1, 220721421), (3, 73573807), (17, 12983613), (51, 4327871), (229, 963849), (687, 321283), (3893, 56697), (11679, 18899)]