20917304

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1$

素因数の和:1547

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 20554696

約数列:

[1, 2, 4, 8, 23, 46, 79, 92, 158, 184, 316, 632, 1439, 1817, 2878, 3634, 5756, 7268, 11512, 14536, 33097, 66194, 113681, 132388, 227362, 264776, 454724, 909448, 2614663, 5229326, 10458652, 20917304]

約数ペア:

[(1, 20917304), (2, 10458652), (4, 5229326), (8, 2614663), (23, 909448), (46, 454724), (79, 264776), (92, 227362), (158, 132388), (184, 113681), (316, 66194), (632, 33097), (1439, 14536), (1817, 11512), (2878, 7268), (3634, 5756)]