251522019

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{210127}}^1$

素因数の和:210159

約数の個数: 24

約数和(自身を含む): 437066240

約数和(自身を除く): 185544221

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 210127, 630381, 1470889, 1891143, 3992413, 4412667, 11977239, 13238001, 27946891, 35931717, 83840673, 251522019]

約数ペア:

[(1, 251522019), (3, 83840673), (7, 35931717), (9, 27946891), (19, 13238001), (21, 11977239), (57, 4412667), (63, 3992413), (133, 1891143), (171, 1470889), (399, 630381), (1197, 210127)]