221781142

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{916451}}^1$

素因数の和:916475

約数の個数: 12

約数和(自身を含む): 365664348

約数和(自身を除く): 143883206

約数列:

[1, 2, 11, 22, 121, 242, 916451, 1832902, 10080961, 20161922, 110890571, 221781142]

約数ペア:

[(1, 221781142), (2, 110890571), (11, 20161922), (22, 10080961), (121, 1832902), (242, 916451)]