31298757

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1669}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 51302400

約数和(自身を除く): 20003643

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 1669, 2679, 5007, 6251, 11683, 18753, 31711, 35049, 78443, 95133, 221977, 235329, 549101, 665931, 1490417, 1647303, 4471251, 10432919, 31298757]

約数ペア:

[(1, 31298757), (3, 10432919), (7, 4471251), (19, 1647303), (21, 1490417), (47, 665931), (57, 549101), (133, 235329), (141, 221977), (329, 95133), (399, 78443), (893, 35049), (987, 31711), (1669, 18753), (2679, 11683), (5007, 6251)]