20388735

素因数分解:

$3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1601}}^1$

素因数の和:1895

約数の個数: 24

約数和(自身を含む): 35487504

約数和(自身を除く): 15098769

約数列:

[1, 3, 5, 9, 15, 45, 283, 849, 1415, 1601, 2547, 4245, 4803, 8005, 12735, 14409, 24015, 72045, 453083, 1359249, 2265415, 4077747, 6796245, 20388735]

約数ペア:

[(1, 20388735), (3, 6796245), (5, 4077747), (9, 2265415), (15, 1359249), (45, 453083), (283, 72045), (849, 24015), (1415, 14409), (1601, 12735), (2547, 8005), (4245, 4803)]