221287715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{174931}}^1$

素因数の和:174970

約数の個数: 16

約数和(自身を含む): 302282496

約数和(自身を除く): 80994781

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 174931, 874655, 1924241, 4023413, 9621205, 20117065, 44257543, 221287715]

約数ペア:

[(1, 221287715), (5, 44257543), (11, 20117065), (23, 9621205), (55, 4023413), (115, 1924241), (253, 874655), (1265, 174931)]