221065215

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{42967}}^1$

素因数の和:42996

約数の個数: 32

約数和(自身を含む): 412492800

約数和(自身を除く): 191427585

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 5145, 42967, 128901, 214835, 300769, 644505, 902307, 1503845, 2105383, 4511535, 6316149, 10526915, 14737681, 31580745, 44213043, 73688405, 221065215]

約数ペア:

[(1, 221065215), (3, 73688405), (5, 44213043), (7, 31580745), (15, 14737681), (21, 10526915), (35, 6316149), (49, 4511535), (105, 2105383), (147, 1503845), (245, 902307), (343, 644505), (735, 300769), (1029, 214835), (1715, 128901), (5145, 42967)]