21693335

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{809}}^1$

素因数の和:1018

約数の個数: 16

約数和(自身を含む): 27060480

約数和(自身を除く): 5367145

約数列:

[1, 5, 31, 155, 173, 809, 865, 4045, 5363, 25079, 26815, 125395, 139957, 699785, 4338667, 21693335]

約数ペア:

[(1, 21693335), (5, 4338667), (31, 699785), (155, 139957), (173, 125395), (809, 26815), (865, 25079), (4045, 5363)]