221489145

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{104723}}^1$

素因数の和:104781

約数の個数: 24

約数和(自身を含む): 392086656

約数和(自身を除く): 170597511

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 104723, 314169, 523615, 942507, 1570845, 4712535, 4921981, 14765943, 24609905, 44297829, 73829715, 221489145]

約数ペア:

[(1, 221489145), (3, 73829715), (5, 44297829), (9, 24609905), (15, 14765943), (45, 4921981), (47, 4712535), (141, 1570845), (235, 942507), (423, 523615), (705, 314169), (2115, 104723)]