21265070

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68597}}^1$

素因数の和:68635

約数の個数: 16

約数和(自身を含む): 39512448

約数和(自身を除く): 18247378

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 68597, 137194, 342985, 685970, 2126507, 4253014, 10632535, 21265070]

約数ペア:

[(1, 21265070), (2, 10632535), (5, 4253014), (10, 2126507), (31, 685970), (62, 342985), (155, 137194), (310, 68597)]