211025409

素因数分解:

$3^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{4337}}^1$

素因数の和:4685

約数の個数: 24

約数和(自身を含む): 328369248

約数和(自身を除く): 117343839

約数列:

[1, 3, 7, 21, 49, 147, 331, 993, 2317, 4337, 6951, 13011, 16219, 30359, 48657, 91077, 212513, 637539, 1435547, 4306641, 10048829, 30146487, 70341803, 211025409]

約数ペア:

[(1, 211025409), (3, 70341803), (7, 30146487), (21, 10048829), (49, 4306641), (147, 1435547), (331, 637539), (993, 212513), (2317, 91077), (4337, 48657), (6951, 30359), (13011, 16219)]