31188591

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{571}}^1$

素因数の和:621

約数の個数: 48

約数和(自身を含む): 56193280

約数和(自身を除く): 25004689

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 189, 289, 357, 459, 571, 867, 1071, 1713, 2023, 2601, 3213, 3997, 5139, 6069, 7803, 9707, 11991, 15417, 18207, 29121, 35973, 54621, 67949, 87363, 107919, 165019, 203847, 262089, 495057, 611541, 1155133, 1485171, 1834623, 3465399, 4455513, 10396197, 31188591]

約数ペア:

[(1, 31188591), (3, 10396197), (7, 4455513), (9, 3465399), (17, 1834623), (21, 1485171), (27, 1155133), (51, 611541), (63, 495057), (119, 262089), (153, 203847), (189, 165019), (289, 107919), (357, 87363), (459, 67949), (571, 54621), (867, 35973), (1071, 29121), (1713, 18207), (2023, 15417), (2601, 11991), (3213, 9707), (3997, 7803), (5139, 6069)]