221640502

素因数分解:

$2^1\times {\mathrm{421}}^1\times {\mathrm{461}}^1\times {\mathrm{571}}^1$

素因数の和:1455

約数の個数: 16

約数和(自身を含む): 334558224

約数和(自身を除く): 112917722

約数列:

[1, 2, 421, 461, 571, 842, 922, 1142, 194081, 240391, 263231, 388162, 480782, 526462, 110820251, 221640502]

約数ペア:

[(1, 221640502), (2, 110820251), (421, 526462), (461, 480782), (571, 388162), (842, 263231), (922, 240391), (1142, 194081)]