201177921

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1\times {\mathrm{491}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 311731200

約数和(自身を除く): 110553279

約数列:

[1, 3, 7, 21, 109, 179, 327, 491, 537, 763, 1253, 1473, 2289, 3437, 3759, 10311, 19511, 53519, 58533, 87889, 136577, 160557, 263667, 374633, 409731, 615223, 1123899, 1845669, 9579901, 28739703, 67059307, 201177921]

約数ペア:

[(1, 201177921), (3, 67059307), (7, 28739703), (21, 9579901), (109, 1845669), (179, 1123899), (327, 615223), (491, 409731), (537, 374633), (763, 263667), (1253, 160557), (1473, 136577), (2289, 87889), (3437, 58533), (3759, 53519), (10311, 19511)]