20443605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:926

約数の個数: 64

約数和(自身を含む): 42674688

約数和(自身を除く): 22231083

約数列:

[1, 3, 5, 7, 13, 15, 17, 21, 35, 39, 51, 65, 85, 91, 105, 119, 195, 221, 255, 273, 357, 455, 595, 663, 881, 1105, 1365, 1547, 1785, 2643, 3315, 4405, 4641, 6167, 7735, 11453, 13215, 14977, 18501, 23205, 30835, 34359, 44931, 57265, 74885, 80171, 92505, 104839, 171795, 194701, 224655, 240513, 314517, 400855, 524195, 584103, 973505, 1202565, 1362907, 1572585, 2920515, 4088721, 6814535, 20443605]

約数ペア:

[(1, 20443605), (3, 6814535), (5, 4088721), (7, 2920515), (13, 1572585), (15, 1362907), (17, 1202565), (21, 973505), (35, 584103), (39, 524195), (51, 400855), (65, 314517), (85, 240513), (91, 224655), (105, 194701), (119, 171795), (195, 104839), (221, 92505), (255, 80171), (273, 74885), (357, 57265), (455, 44931), (595, 34359), (663, 30835), (881, 23205), (1105, 18501), (1365, 14977), (1547, 13215), (1785, 11453), (2643, 7735), (3315, 6167), (4405, 4641)]