19911710013

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{3726691}}^1$

素因数の和:3726844

約数の個数: 16

約数和(自身を含む): 28799875776

約数和(自身を除く): 8888165763

約数列:

[1, 3, 13, 39, 137, 411, 1781, 5343, 3726691, 11180073, 48446983, 145340949, 510556667, 1531670001, 6637236671, 19911710013]

約数ペア:

[(1, 19911710013), (3, 6637236671), (13, 1531670001), (39, 510556667), (137, 145340949), (411, 48446983), (1781, 11180073), (5343, 3726691)]