17989390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1297}}^1$

素因数の和:1396

約数の個数: 32

約数和(自身を含む): 34578720

約数和(自身を除く): 16589330

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1297, 1387, 2594, 2774, 6485, 6935, 12970, 13870, 24643, 49286, 94681, 123215, 189362, 246430, 473405, 946810, 1798939, 3597878, 8994695, 17989390]

約数ペア:

[(1, 17989390), (2, 8994695), (5, 3597878), (10, 1798939), (19, 946810), (38, 473405), (73, 246430), (95, 189362), (146, 123215), (190, 94681), (365, 49286), (730, 24643), (1297, 13870), (1387, 12970), (2594, 6935), (2774, 6485)]