217692015

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 366363648

約数和(自身を除く): 148671633

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 167, 215, 235, 501, 645, 705, 835, 1849, 2021, 2505, 5547, 6063, 7181, 7849, 9245, 10105, 21543, 23547, 27735, 30315, 35905, 39245, 86903, 107715, 117735, 260709, 308783, 337507, 434515, 926349, 1012521, 1303545, 1543915, 1687535, 4631745, 5062605, 14512801, 43538403, 72564005, 217692015]

約数ペア:

[(1, 217692015), (3, 72564005), (5, 43538403), (15, 14512801), (43, 5062605), (47, 4631745), (129, 1687535), (141, 1543915), (167, 1303545), (215, 1012521), (235, 926349), (501, 434515), (645, 337507), (705, 308783), (835, 260709), (1849, 117735), (2021, 107715), (2505, 86903), (5547, 39245), (6063, 35905), (7181, 30315), (7849, 27735), (9245, 23547), (10105, 21543)]