21690471815

素因数分解:

$5^1\times {\mathrm{103}}^2\times {\mathrm{461}}^1\times {\mathrm{887}}^1$

素因数の和:1559

約数の個数: 24

約数和(自身を含む): 26370435168

約数和(自身を除く): 4679963353

約数列:

[1, 5, 103, 461, 515, 887, 2305, 4435, 10609, 47483, 53045, 91361, 237415, 408907, 456805, 2044535, 4890749, 9410183, 24453745, 42117421, 47050915, 210587105, 4338094363, 21690471815]

約数ペア:

[(1, 21690471815), (5, 4338094363), (103, 210587105), (461, 47050915), (515, 42117421), (887, 24453745), (2305, 9410183), (4435, 4890749), (10609, 2044535), (47483, 456805), (53045, 408907), (91361, 237415)]