147231721

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:183

約数の個数: 40

約数和(自身を含む): 190580040

約数和(自身を除く): 43348319

約数列:

[1, 7, 13, 49, 53, 89, 91, 343, 371, 623, 637, 689, 1157, 2401, 2597, 4361, 4459, 4717, 4823, 8099, 18179, 30527, 31213, 33019, 33761, 56693, 61321, 127253, 213689, 231133, 236327, 396851, 429247, 1617931, 1654289, 2777957, 3004729, 11325517, 21033103, 147231721]

約数ペア:

[(1, 147231721), (7, 21033103), (13, 11325517), (49, 3004729), (53, 2777957), (89, 1654289), (91, 1617931), (343, 429247), (371, 396851), (623, 236327), (637, 231133), (689, 213689), (1157, 127253), (2401, 61321), (2597, 56693), (4361, 33761), (4459, 33019), (4717, 31213), (4823, 30527), (8099, 18179)]