20198985

素因数分解:

$3^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{4969}}^1$

素因数の和:5248

約数の個数: 16

約数和(自身を含む): 32444160

約数和(自身を除く): 12245175

約数列:

[1, 3, 5, 15, 271, 813, 1355, 4065, 4969, 14907, 24845, 74535, 1346599, 4039797, 6732995, 20198985]

約数ペア:

[(1, 20198985), (3, 6732995), (5, 4039797), (15, 1346599), (271, 74535), (813, 24845), (1355, 14907), (4065, 4969)]