20439705

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{733}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 38684736

約数和(自身を除く): 18245031

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 169, 195, 429, 507, 715, 733, 845, 1859, 2145, 2199, 2535, 3665, 5577, 8063, 9295, 9529, 10995, 24189, 27885, 28587, 40315, 47645, 104819, 120945, 123877, 142935, 314457, 371631, 524095, 619385, 1362647, 1572285, 1858155, 4087941, 6813235, 20439705]

約数ペア:

[(1, 20439705), (3, 6813235), (5, 4087941), (11, 1858155), (13, 1572285), (15, 1362647), (33, 619385), (39, 524095), (55, 371631), (65, 314457), (143, 142935), (165, 123877), (169, 120945), (195, 104819), (429, 47645), (507, 40315), (715, 28587), (733, 27885), (845, 24189), (1859, 10995), (2145, 9529), (2199, 9295), (2535, 8063), (3665, 5577)]