81218235

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{110501}}^1$

素因数の和:110523

約数の個数: 24

約数和(自身を含む): 151166736

約数和(自身を除く): 69948501

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 110501, 331503, 552505, 773507, 1657515, 2320521, 3867535, 5414549, 11602605, 16243647, 27072745, 81218235]

約数ペア:

[(1, 81218235), (3, 27072745), (5, 16243647), (7, 11602605), (15, 5414549), (21, 3867535), (35, 2320521), (49, 1657515), (105, 773507), (147, 552505), (245, 331503), (735, 110501)]