20943911079

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25572541}}^1$

素因数の和:25572567

約数の個数: 24

約数和(自身を含む): 37233621152

約数和(自身を除く): 16289710073

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 25572541, 76717623, 179007787, 230152869, 332443033, 537023361, 997329099, 1611070083, 2327101231, 2991987297, 6981303693, 20943911079]

約数ペア:

[(1, 20943911079), (3, 6981303693), (7, 2991987297), (9, 2327101231), (13, 1611070083), (21, 997329099), (39, 537023361), (63, 332443033), (91, 230152869), (117, 179007787), (273, 76717623), (819, 25572541)]