20859435

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 39336960

約数和(自身を除く): 18477525

約数列:

[1, 3, 5, 9, 15, 19, 31, 45, 57, 93, 95, 155, 171, 279, 285, 465, 589, 787, 855, 1395, 1767, 2361, 2945, 3935, 5301, 7083, 8835, 11805, 14953, 24397, 26505, 35415, 44859, 73191, 74765, 121985, 134577, 219573, 224295, 365955, 463543, 672885, 1097865, 1390629, 2317715, 4171887, 6953145, 20859435]

約数ペア:

[(1, 20859435), (3, 6953145), (5, 4171887), (9, 2317715), (15, 1390629), (19, 1097865), (31, 672885), (45, 463543), (57, 365955), (93, 224295), (95, 219573), (155, 134577), (171, 121985), (279, 74765), (285, 73191), (465, 44859), (589, 35415), (787, 26505), (855, 24397), (1395, 14953), (1767, 11805), (2361, 8835), (2945, 7083), (3935, 5301)]