21942585

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1699}}^1$

素因数の和:1758

約数の個数: 48

約数和(自身を含む): 44553600

約数和(自身を除く): 22611015

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 41, 45, 63, 105, 123, 205, 287, 315, 369, 615, 861, 1435, 1699, 1845, 2583, 4305, 5097, 8495, 11893, 12915, 15291, 25485, 35679, 59465, 69659, 76455, 107037, 178395, 208977, 348295, 487613, 535185, 626931, 1044885, 1462839, 2438065, 3134655, 4388517, 7314195, 21942585]

約数ペア:

[(1, 21942585), (3, 7314195), (5, 4388517), (7, 3134655), (9, 2438065), (15, 1462839), (21, 1044885), (35, 626931), (41, 535185), (45, 487613), (63, 348295), (105, 208977), (123, 178395), (205, 107037), (287, 76455), (315, 69659), (369, 59465), (615, 35679), (861, 25485), (1435, 15291), (1699, 12915), (1845, 11893), (2583, 8495), (4305, 5097)]