28420637

素因数分解:

$7^5\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:143

約数の個数: 24

約数和(自身を含む): 35294400

約数和(自身を除く): 6873763

約数列:

[1, 7, 19, 49, 89, 133, 343, 623, 931, 1691, 2401, 4361, 6517, 11837, 16807, 30527, 45619, 82859, 213689, 319333, 580013, 1495823, 4060091, 28420637]

約数ペア:

[(1, 28420637), (7, 4060091), (19, 1495823), (49, 580013), (89, 319333), (133, 213689), (343, 82859), (623, 45619), (931, 30527), (1691, 16807), (2401, 11837), (4361, 6517)]