31190229

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 55111680

約数和(自身を除く): 23921451

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 71, 133, 171, 213, 367, 399, 497, 639, 1101, 1197, 1349, 1491, 2569, 3303, 4047, 4473, 6973, 7707, 9443, 12141, 20919, 23121, 26057, 28329, 48811, 62757, 78171, 84987, 146433, 182399, 234513, 439299, 495083, 547197, 1485249, 1641591, 3465581, 4455747, 10396743, 31190229]

約数ペア:

[(1, 31190229), (3, 10396743), (7, 4455747), (9, 3465581), (19, 1641591), (21, 1485249), (57, 547197), (63, 495083), (71, 439299), (133, 234513), (171, 182399), (213, 146433), (367, 84987), (399, 78171), (497, 62757), (639, 48811), (1101, 28329), (1197, 26057), (1349, 23121), (1491, 20919), (2569, 12141), (3303, 9443), (4047, 7707), (4473, 6973)]