78335271

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{9349}}^1$

素因数の和:9388

約数の個数: 36

約数和(自身を含む): 138567000

約数和(自身を除く): 60231729

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 8379, 9349, 28047, 65443, 84141, 177631, 196329, 458101, 532893, 588987, 1243417, 1374303, 1598679, 3730251, 4122909, 8703919, 11190753, 26111757, 78335271]

約数ペア:

[(1, 78335271), (3, 26111757), (7, 11190753), (9, 8703919), (19, 4122909), (21, 3730251), (49, 1598679), (57, 1374303), (63, 1243417), (133, 588987), (147, 532893), (171, 458101), (399, 196329), (441, 177631), (931, 84141), (1197, 65443), (2793, 28047), (8379, 9349)]