78540357

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{11579}}^1$

素因数の和:11625

約数の個数: 32

約数和(自身を含む): 133401600

約数和(自身を除く): 54861243

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 6783, 11579, 34737, 81053, 196843, 220001, 243159, 590529, 660003, 1377901, 1540007, 3740017, 4133703, 4620021, 11220051, 26180119, 78540357]

約数ペア:

[(1, 78540357), (3, 26180119), (7, 11220051), (17, 4620021), (19, 4133703), (21, 3740017), (51, 1540007), (57, 1377901), (119, 660003), (133, 590529), (323, 243159), (357, 220001), (399, 196843), (969, 81053), (2261, 34737), (6783, 11579)]