539658561

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1993}}^1$

素因数の和:2193

約数の個数: 32

約数和(自身を含む): 795940992

約数和(自身を除く): 256282431

約数列:

[1, 3, 13, 39, 53, 131, 159, 393, 689, 1703, 1993, 2067, 5109, 5979, 6943, 20829, 25909, 77727, 90259, 105629, 261083, 270777, 316887, 783249, 1373177, 3394079, 4119531, 10182237, 13837399, 41512197, 179886187, 539658561]

約数ペア:

[(1, 539658561), (3, 179886187), (13, 41512197), (39, 13837399), (53, 10182237), (131, 4119531), (159, 3394079), (393, 1373177), (689, 783249), (1703, 316887), (1993, 270777), (2067, 261083), (5109, 105629), (5979, 90259), (6943, 77727), (20829, 25909)]