21000928995

素因数分解:

$3^3\times 5^1\times {\mathrm{155562437}}^1$

素因数の和:155562451

約数の個数: 16

約数和(自身を含む): 37334985120

約数和(自身を除く): 16334056125

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 155562437, 466687311, 777812185, 1400061933, 2333436555, 4200185799, 7000309665, 21000928995]

約数ペア:

[(1, 21000928995), (3, 7000309665), (5, 4200185799), (9, 2333436555), (15, 1400061933), (27, 777812185), (45, 466687311), (135, 155562437)]