19796553

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2081}}^1$

素因数の和:2245

約数の個数: 24

約数和(自身を含む): 32912256

約数和(自身を除く): 13115703

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 2081, 3171, 6243, 9513, 14567, 18729, 43701, 131103, 314231, 942693, 2199617, 2828079, 6598851, 19796553]

約数ペア:

[(1, 19796553), (3, 6598851), (7, 2828079), (9, 2199617), (21, 942693), (63, 314231), (151, 131103), (453, 43701), (1057, 18729), (1359, 14567), (2081, 9513), (3171, 6243)]