20170911921

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{6211}}^1$

素因数の和:6557

約数の個数: 32

約数和(自身を含む): 27766149120

約数和(自身を除く): 7595237199

約数列:

[1, 3, 71, 79, 193, 213, 237, 579, 5609, 6211, 13703, 15247, 16827, 18633, 41109, 45741, 440981, 490669, 1082537, 1198723, 1322943, 1472007, 3247611, 3596169, 34837499, 85109333, 94699117, 104512497, 255327999, 284097351, 6723637307, 20170911921]

約数ペア:

[(1, 20170911921), (3, 6723637307), (71, 284097351), (79, 255327999), (193, 104512497), (213, 94699117), (237, 85109333), (579, 34837499), (5609, 3596169), (6211, 3247611), (13703, 1472007), (15247, 1322943), (16827, 1198723), (18633, 1082537), (41109, 490669), (45741, 440981)]