2021180791

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 2382589440

約数和(自身を除く): 361408649

約数列:

[1, 7, 101, 131, 139, 157, 707, 917, 973, 1099, 13231, 14039, 15857, 18209, 20567, 21823, 92617, 98273, 110999, 127463, 143969, 152761, 1839109, 2077267, 2204123, 2858813, 12873763, 14540869, 15428861, 20011691, 288740113, 2021180791]

約数ペア:

[(1, 2021180791), (7, 288740113), (101, 20011691), (131, 15428861), (139, 14540869), (157, 12873763), (707, 2858813), (917, 2204123), (973, 2077267), (1099, 1839109), (13231, 152761), (14039, 143969), (15857, 127463), (18209, 110999), (20567, 98273), (21823, 92617)]