19678167

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:548

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 11425833

約数列:

[1, 3, 9, 19, 27, 57, 89, 171, 267, 431, 513, 801, 1293, 1691, 2403, 3879, 5073, 8189, 11637, 15219, 24567, 38359, 45657, 73701, 115077, 221103, 345231, 728821, 1035693, 2186463, 6559389, 19678167]

約数ペア:

[(1, 19678167), (3, 6559389), (9, 2186463), (19, 1035693), (27, 728821), (57, 345231), (89, 221103), (171, 115077), (267, 73701), (431, 45657), (513, 38359), (801, 24567), (1293, 15219), (1691, 11637), (2403, 8189), (3879, 5073)]