213835775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{11701}}^1$

素因数の和:11771

約数の個数: 24

約数和(自身を含む): 287307504

約数和(自身を除く): 73471729

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1075, 3655, 11701, 18275, 58505, 198917, 292525, 503143, 994585, 2515715, 4972925, 8553431, 12578575, 42767155, 213835775]

約数ペア:

[(1, 213835775), (5, 42767155), (17, 12578575), (25, 8553431), (43, 4972925), (85, 2515715), (215, 994585), (425, 503143), (731, 292525), (1075, 198917), (3655, 58505), (11701, 18275)]