19945809

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{751}}^1$

素因数の和:997

約数の個数: 24

約数和(自身を含む): 31204992

約数和(自身を除く): 11259183

約数列:

[1, 3, 9, 13, 39, 117, 227, 681, 751, 2043, 2253, 2951, 6759, 8853, 9763, 26559, 29289, 87867, 170477, 511431, 1534293, 2216201, 6648603, 19945809]

約数ペア:

[(1, 19945809), (3, 6648603), (9, 2216201), (13, 1534293), (39, 511431), (117, 170477), (227, 87867), (681, 29289), (751, 26559), (2043, 9763), (2253, 8853), (2951, 6759)]