21096808

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{271}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 40930560

約数和(自身を除く): 19833752

約数列:

[1, 2, 4, 8, 37, 74, 148, 263, 271, 296, 526, 542, 1052, 1084, 2104, 2168, 9731, 10027, 19462, 20054, 38924, 40108, 71273, 77848, 80216, 142546, 285092, 570184, 2637101, 5274202, 10548404, 21096808]

約数ペア:

[(1, 21096808), (2, 10548404), (4, 5274202), (8, 2637101), (37, 570184), (74, 285092), (148, 142546), (263, 80216), (271, 77848), (296, 71273), (526, 40108), (542, 38924), (1052, 20054), (1084, 19462), (2104, 10027), (2168, 9731)]