51515151

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 74996928

約数和(自身を除く): 23481777

約数列:

[1, 3, 17, 51, 73, 101, 137, 219, 303, 411, 1241, 1717, 2329, 3723, 5151, 6987, 7373, 10001, 13837, 22119, 30003, 41511, 125341, 170017, 235229, 376023, 510051, 705687, 1010101, 3030303, 17171717, 51515151]

約数ペア:

[(1, 51515151), (3, 17171717), (17, 3030303), (51, 1010101), (73, 705687), (101, 510051), (137, 376023), (219, 235229), (303, 170017), (411, 125341), (1241, 41511), (1717, 30003), (2329, 22119), (3723, 13837), (5151, 10001), (6987, 7373)]