18553707

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1061}}^1$

素因数の和:1163

約数の個数: 24

約数和(自身を含む): 28164240

約数和(自身を除く): 9610533

約数列:

[1, 3, 9, 29, 67, 87, 201, 261, 603, 1061, 1943, 3183, 5829, 9549, 17487, 30769, 71087, 92307, 213261, 276921, 639783, 2061523, 6184569, 18553707]

約数ペア:

[(1, 18553707), (3, 6184569), (9, 2061523), (29, 639783), (67, 276921), (87, 213261), (201, 92307), (261, 71087), (603, 30769), (1061, 17487), (1943, 9549), (3183, 5829)]