31621989

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{877}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 51584256

約数和(自身を除く): 19962267

約数列:

[1, 3, 7, 17, 21, 51, 101, 119, 303, 357, 707, 877, 1717, 2121, 2631, 5151, 6139, 12019, 14909, 18417, 36057, 44727, 88577, 104363, 265731, 313089, 620039, 1505809, 1860117, 4517427, 10540663, 31621989]

約数ペア:

[(1, 31621989), (3, 10540663), (7, 4517427), (17, 1860117), (21, 1505809), (51, 620039), (101, 313089), (119, 265731), (303, 104363), (357, 88577), (707, 44727), (877, 36057), (1717, 18417), (2121, 14909), (2631, 12019), (5151, 6139)]