21572965

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{1259}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5643035

約数列:

[1, 5, 23, 115, 149, 745, 1259, 3427, 6295, 17135, 28957, 144785, 187591, 937955, 4314593, 21572965]

約数ペア:

[(1, 21572965), (5, 4314593), (23, 937955), (115, 187591), (149, 144785), (745, 28957), (1259, 17135), (3427, 6295)]