211672015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2091

約数の個数: 32

約数和(自身を含む): 284834880

約数和(自身を除く): 73162865

約数列:

[1, 5, 17, 29, 43, 85, 145, 215, 493, 731, 1247, 1997, 2465, 3655, 6235, 9985, 21199, 33949, 57913, 85871, 105995, 169745, 289565, 429355, 984521, 1459807, 2490259, 4922605, 7299035, 12451295, 42334403, 211672015]

約数ペア:

[(1, 211672015), (5, 42334403), (17, 12451295), (29, 7299035), (43, 4922605), (85, 2490259), (145, 1459807), (215, 984521), (493, 429355), (731, 289565), (1247, 169745), (1997, 105995), (2465, 85871), (3655, 57913), (6235, 33949), (9985, 21199)]