78756867

素因数分解:

$3^4\times 7^2\times {\mathrm{19843}}^1$

素因数の和:19869

約数の個数: 30

約数和(自身を含む): 136864068

約数和(自身を除く): 58107201

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 19843, 59529, 138901, 178587, 416703, 535761, 972307, 1250109, 1607283, 2916921, 3750327, 8750763, 11250981, 26252289, 78756867]

約数ペア:

[(1, 78756867), (3, 26252289), (7, 11250981), (9, 8750763), (21, 3750327), (27, 2916921), (49, 1607283), (63, 1250109), (81, 972307), (147, 535761), (189, 416703), (441, 178587), (567, 138901), (1323, 59529), (3969, 19843)]