21070629

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 31336032

約数和(自身を除く): 10265403

約数列:

[1, 3, 9, 67, 83, 201, 249, 421, 603, 747, 1263, 3789, 5561, 16683, 28207, 34943, 50049, 84621, 104829, 253863, 314487, 2341181, 7023543, 21070629]

約数ペア:

[(1, 21070629), (3, 7023543), (9, 2341181), (67, 314487), (83, 253863), (201, 104829), (249, 84621), (421, 50049), (603, 34943), (747, 28207), (1263, 16683), (3789, 5561)]