20199721269

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73991653}}^1$

素因数の和:73991676

約数の個数: 16

約数和(自身を含む): 33148260992

約数和(自身を除く): 12948539723

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 73991653, 221974959, 517941571, 961891489, 1553824713, 2885674467, 6733240423, 20199721269]

約数ペア:

[(1, 20199721269), (3, 6733240423), (7, 2885674467), (13, 1553824713), (21, 961891489), (39, 517941571), (91, 221974959), (273, 73991653)]