28181085

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1621}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 48270720

約数和(自身を除く): 20089635

約数列:

[1, 3, 5, 15, 19, 57, 61, 95, 183, 285, 305, 915, 1159, 1621, 3477, 4863, 5795, 8105, 17385, 24315, 30799, 92397, 98881, 153995, 296643, 461985, 494405, 1483215, 1878739, 5636217, 9393695, 28181085]

約数ペア:

[(1, 28181085), (3, 9393695), (5, 5636217), (15, 1878739), (19, 1483215), (57, 494405), (61, 461985), (95, 296643), (183, 153995), (285, 98881), (305, 92397), (915, 30799), (1159, 24315), (1621, 17385), (3477, 8105), (4863, 5795)]