21866625

素因数分解:

$3^3\times 5^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 128

約数和(自身を含む): 47923200

約数和(自身を除く): 26056575

約数列:

[1, 3, 5, 9, 11, 15, 19, 25, 27, 31, 33, 45, 55, 57, 75, 93, 95, 99, 125, 135, 155, 165, 171, 209, 225, 275, 279, 285, 297, 341, 375, 465, 475, 495, 513, 589, 627, 675, 775, 825, 837, 855, 1023, 1045, 1125, 1375, 1395, 1425, 1485, 1705, 1767, 1881, 2325, 2375, 2475, 2565, 2945, 3069, 3135, 3375, 3875, 4125, 4185, 4275, 5115, 5225, 5301, 5643, 6479, 6975, 7125, 7425, 8525, 8835, 9207, 9405, 11625, 12375, 12825, 14725, 15345, 15675, 15903, 19437, 20925, 21375, 25575, 26125, 26505, 28215, 32395, 34875, 37125, 42625, 44175, 46035, 47025, 58311, 64125, 73625, 76725, 78375, 79515, 97185, 104625, 127875, 132525, 141075, 161975, 174933, 220875, 230175, 235125, 291555, 383625, 397575, 485925, 662625, 705375, 809875, 874665, 1150875, 1457775, 1987875, 2429625, 4373325, 7288875, 21866625]

約数ペア:

[(1, 21866625), (3, 7288875), (5, 4373325), (9, 2429625), (11, 1987875), (15, 1457775), (19, 1150875), (25, 874665), (27, 809875), (31, 705375), (33, 662625), (45, 485925), (55, 397575), (57, 383625), (75, 291555), (93, 235125), (95, 230175), (99, 220875), (125, 174933), (135, 161975), (155, 141075), (165, 132525), (171, 127875), (209, 104625), (225, 97185), (275, 79515), (279, 78375), (285, 76725), (297, 73625), (341, 64125), (375, 58311), (465, 47025), (475, 46035), (495, 44175), (513, 42625), (589, 37125), (627, 34875), (675, 32395), (775, 28215), (825, 26505), (837, 26125), (855, 25575), (1023, 21375), (1045, 20925), (1125, 19437), (1375, 15903), (1395, 15675), (1425, 15345), (1485, 14725), (1705, 12825), (1767, 12375), (1881, 11625), (2325, 9405), (2375, 9207), (2475, 8835), (2565, 8525), (2945, 7425), (3069, 7125), (3135, 6975), (3375, 6479), (3875, 5643), (4125, 5301), (4185, 5225), (4275, 5115)]