21366555

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3449}}^1$

素因数の和:3523

約数の個数: 32

約数和(自身を含む): 39744000

約数和(自身を除く): 18377445

約数列:

[1, 3, 5, 7, 15, 21, 35, 59, 105, 177, 295, 413, 885, 1239, 2065, 3449, 6195, 10347, 17245, 24143, 51735, 72429, 120715, 203491, 362145, 610473, 1017455, 1424437, 3052365, 4273311, 7122185, 21366555]

約数ペア:

[(1, 21366555), (3, 7122185), (5, 4273311), (7, 3052365), (15, 1424437), (21, 1017455), (35, 610473), (59, 362145), (105, 203491), (177, 120715), (295, 72429), (413, 51735), (885, 24143), (1239, 17245), (2065, 10347), (3449, 6195)]