21478065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{3467}}^1$

素因数の和:3541

約数の個数: 32

約数和(自身を含む): 39951360

約数和(自身を除く): 18473295

約数列:

[1, 3, 5, 7, 15, 21, 35, 59, 105, 177, 295, 413, 885, 1239, 2065, 3467, 6195, 10401, 17335, 24269, 52005, 72807, 121345, 204553, 364035, 613659, 1022765, 1431871, 3068295, 4295613, 7159355, 21478065]

約数ペア:

[(1, 21478065), (3, 7159355), (5, 4295613), (7, 3068295), (15, 1431871), (21, 1022765), (35, 613659), (59, 364035), (105, 204553), (177, 121345), (295, 72807), (413, 52005), (885, 24269), (1239, 17335), (2065, 10401), (3467, 6195)]