21533931

素因数分解:

$3^6\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:398

約数の個数: 28

約数和(自身を含む): 32702560

約数和(自身を除く): 11168629

約数列:

[1, 3, 9, 27, 81, 109, 243, 271, 327, 729, 813, 981, 2439, 2943, 7317, 8829, 21951, 26487, 29539, 65853, 79461, 88617, 197559, 265851, 797553, 2392659, 7177977, 21533931]

約数ペア:

[(1, 21533931), (3, 7177977), (9, 2392659), (27, 797553), (81, 265851), (109, 197559), (243, 88617), (271, 79461), (327, 65853), (729, 29539), (813, 26487), (981, 21951), (2439, 8829), (2943, 7317)]