20281638

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6047}}^1$

素因数の和:6108

約数の個数: 32

約数和(自身を含む): 44706816

約数和(自身を除く): 24425178

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 6047, 12094, 18141, 36282, 78611, 157222, 235833, 260021, 471666, 520042, 780063, 1560126, 3380273, 6760546, 10140819, 20281638]

約数ペア:

[(1, 20281638), (2, 10140819), (3, 6760546), (6, 3380273), (13, 1560126), (26, 780063), (39, 520042), (43, 471666), (78, 260021), (86, 235833), (129, 157222), (258, 78611), (559, 36282), (1118, 18141), (1677, 12094), (3354, 6047)]