221405895

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{50723}}^1$

素因数の和:50831

約数の個数: 24

約数和(自身を含む): 387734256

約数和(自身を除く): 166328361

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 50723, 152169, 253615, 456507, 760845, 2282535, 4920131, 14760393, 24600655, 44281179, 73801965, 221405895]

約数ペア:

[(1, 221405895), (3, 73801965), (5, 44281179), (9, 24600655), (15, 14760393), (45, 4920131), (97, 2282535), (291, 760845), (485, 456507), (873, 253615), (1455, 152169), (4365, 50723)]