211252815

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{509}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 383797440

約数和(自身を除く): 172544625

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 401, 509, 1035, 1203, 1527, 2005, 2545, 3609, 4581, 6015, 7635, 9223, 11707, 18045, 22905, 27669, 35121, 46115, 58535, 83007, 105363, 138345, 175605, 204109, 415035, 526815, 612327, 1020545, 1836981, 3061635, 4694507, 9184905, 14083521, 23472535, 42250563, 70417605, 211252815]

約数ペア:

[(1, 211252815), (3, 70417605), (5, 42250563), (9, 23472535), (15, 14083521), (23, 9184905), (45, 4694507), (69, 3061635), (115, 1836981), (207, 1020545), (345, 612327), (401, 526815), (509, 415035), (1035, 204109), (1203, 175605), (1527, 138345), (2005, 105363), (2545, 83007), (3609, 58535), (4581, 46115), (6015, 35121), (7635, 27669), (9223, 22905), (11707, 18045)]