21321213

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{11299}}^1$

素因数の和:11356

約数の個数: 16

約数和(自身を含む): 30916800

約数和(自身を除く): 9595587

約数列:

[1, 3, 17, 37, 51, 111, 629, 1887, 11299, 33897, 192083, 418063, 576249, 1254189, 7107071, 21321213]

約数ペア:

[(1, 21321213), (3, 7107071), (17, 1254189), (37, 576249), (51, 418063), (111, 192083), (629, 33897), (1887, 11299)]