620654321

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{10457}}^1$

素因数の和:10664

約数の個数: 16

約数和(自身を含む): 726203520

約数和(自身を除く): 105549199

約数列:

[1, 7, 61, 139, 427, 973, 8479, 10457, 59353, 73199, 637877, 1453523, 4465139, 10174661, 88664903, 620654321]

約数ペア:

[(1, 620654321), (7, 88664903), (61, 10174661), (139, 4465139), (427, 1453523), (973, 637877), (8479, 73199), (10457, 59353)]