221213895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{2677}}^1$

素因数の和:3479

約数の個数: 32

約数和(自身を含む): 405170688

約数和(自身を除く): 183956793

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 787, 2361, 2677, 3935, 5509, 8031, 11805, 13385, 16527, 18739, 27545, 40155, 56217, 82635, 93695, 281085, 2106799, 6320397, 10533995, 14747593, 31601985, 44242779, 73737965, 221213895]

約数ペア:

[(1, 221213895), (3, 73737965), (5, 44242779), (7, 31601985), (15, 14747593), (21, 10533995), (35, 6320397), (105, 2106799), (787, 281085), (2361, 93695), (2677, 82635), (3935, 56217), (5509, 40155), (8031, 27545), (11805, 18739), (13385, 16527)]