388291827

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{240131}}^1$

素因数の和:240159

約数の個数: 24

約数和(自身を含む): 657001152

約数和(自身を除く): 268709325

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 240131, 720393, 1680917, 2641441, 5042751, 7924323, 11766419, 18490087, 35299257, 55470261, 129430609, 388291827]

約数ペア:

[(1, 388291827), (3, 129430609), (7, 55470261), (11, 35299257), (21, 18490087), (33, 11766419), (49, 7924323), (77, 5042751), (147, 2641441), (231, 1680917), (539, 720393), (1617, 240131)]