21165130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2207}}^1$

素因数の和:2358

約数の個数: 32

約数和(自身を含む): 43877376

約数和(自身を除く): 22712246

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 137, 274, 685, 959, 1370, 1918, 2207, 4414, 4795, 9590, 11035, 15449, 22070, 30898, 77245, 154490, 302359, 604718, 1511795, 2116513, 3023590, 4233026, 10582565, 21165130]

約数ペア:

[(1, 21165130), (2, 10582565), (5, 4233026), (7, 3023590), (10, 2116513), (14, 1511795), (35, 604718), (70, 302359), (137, 154490), (274, 77245), (685, 30898), (959, 22070), (1370, 15449), (1918, 11035), (2207, 9590), (4414, 4795)]