18393843

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 28188160

約数和(自身を除く): 9794317

約数列:

[1, 3, 13, 19, 39, 57, 103, 241, 247, 309, 723, 741, 1339, 1957, 3133, 4017, 4579, 5871, 9399, 13737, 24823, 25441, 59527, 74469, 76323, 178581, 322699, 471637, 968097, 1414911, 6131281, 18393843]

約数ペア:

[(1, 18393843), (3, 6131281), (13, 1414911), (19, 968097), (39, 471637), (57, 322699), (103, 178581), (241, 76323), (247, 74469), (309, 59527), (723, 25441), (741, 24823), (1339, 13737), (1957, 9399), (3133, 5871), (4017, 4579)]