21269955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1213}}^1$

素因数の和:1395

約数の個数: 32

約数和(自身を含む): 39158784

約数和(自身を除く): 17888829

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 167, 501, 835, 1169, 1213, 2505, 3507, 3639, 5845, 6065, 8491, 17535, 18195, 25473, 42455, 127365, 202571, 607713, 1012855, 1417997, 3038565, 4253991, 7089985, 21269955]

約数ペア:

[(1, 21269955), (3, 7089985), (5, 4253991), (7, 3038565), (15, 1417997), (21, 1012855), (35, 607713), (105, 202571), (167, 127365), (501, 42455), (835, 25473), (1169, 18195), (1213, 17535), (2505, 8491), (3507, 6065), (3639, 5845)]