31340253

素因数分解:

$3^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{229}}^1$

素因数の和:279

約数の個数: 40

約数和(自身を含む): 51538400

約数和(自身を除く): 20198147

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 229, 343, 399, 687, 931, 1029, 1603, 2401, 2793, 4351, 4809, 6517, 7203, 11221, 13053, 19551, 30457, 33663, 45619, 78547, 91371, 136857, 213199, 235641, 549829, 639597, 1492393, 1649487, 4477179, 10446751, 31340253]

約数ペア:

[(1, 31340253), (3, 10446751), (7, 4477179), (19, 1649487), (21, 1492393), (49, 639597), (57, 549829), (133, 235641), (147, 213199), (229, 136857), (343, 91371), (399, 78547), (687, 45619), (931, 33663), (1029, 30457), (1603, 19551), (2401, 13053), (2793, 11221), (4351, 7203), (4809, 6517)]