21283535

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1613}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 32538240

約数和(自身を除く): 11254705

約数列:

[1, 5, 7, 13, 29, 35, 65, 91, 145, 203, 377, 455, 1015, 1613, 1885, 2639, 8065, 11291, 13195, 20969, 46777, 56455, 104845, 146783, 233885, 327439, 608101, 733915, 1637195, 3040505, 4256707, 21283535]

約数ペア:

[(1, 21283535), (5, 4256707), (7, 3040505), (13, 1637195), (29, 733915), (35, 608101), (65, 327439), (91, 233885), (145, 146783), (203, 104845), (377, 56455), (455, 46777), (1015, 20969), (1613, 13195), (1885, 11291), (2639, 8065)]