21066233216

素因数分解:

$2^7\times 7^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1\times {\mathrm{1993}}^1$

素因数の和:2312

約数の個数: 128

約数和(自身を含む): 49203624960

約数和(自身を除く): 28137391744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 56, 64, 94, 112, 128, 188, 224, 251, 329, 376, 448, 502, 658, 752, 896, 1004, 1316, 1504, 1757, 1993, 2008, 2632, 3008, 3514, 3986, 4016, 5264, 6016, 7028, 7972, 8032, 10528, 11797, 13951, 14056, 15944, 16064, 21056, 23594, 27902, 28112, 31888, 32128, 42112, 47188, 55804, 56224, 63776, 82579, 93671, 94376, 111608, 112448, 127552, 165158, 187342, 188752, 223216, 224896, 255104, 330316, 374684, 377504, 446432, 500243, 655697, 660632, 749368, 755008, 892864, 1000486, 1311394, 1321264, 1498736, 1510016, 1785728, 2000972, 2622788, 2642528, 2997472, 3501701, 4001944, 5245576, 5285056, 5994944, 7003402, 8003888, 10491152, 10570112, 11989888, 14006804, 16007776, 20982304, 23511421, 28013608, 32015552, 41964608, 47022842, 56027216, 64031104, 83929216, 94045684, 112054432, 164579947, 188091368, 224108864, 329159894, 376182736, 448217728, 658319788, 752365472, 1316639576, 1504730944, 2633279152, 3009461888, 5266558304, 10533116608, 21066233216]

約数ペア:

[(1, 21066233216), (2, 10533116608), (4, 5266558304), (7, 3009461888), (8, 2633279152), (14, 1504730944), (16, 1316639576), (28, 752365472), (32, 658319788), (47, 448217728), (56, 376182736), (64, 329159894), (94, 224108864), (112, 188091368), (128, 164579947), (188, 112054432), (224, 94045684), (251, 83929216), (329, 64031104), (376, 56027216), (448, 47022842), (502, 41964608), (658, 32015552), (752, 28013608), (896, 23511421), (1004, 20982304), (1316, 16007776), (1504, 14006804), (1757, 11989888), (1993, 10570112), (2008, 10491152), (2632, 8003888), (3008, 7003402), (3514, 5994944), (3986, 5285056), (4016, 5245576), (5264, 4001944), (6016, 3501701), (7028, 2997472), (7972, 2642528), (8032, 2622788), (10528, 2000972), (11797, 1785728), (13951, 1510016), (14056, 1498736), (15944, 1321264), (16064, 1311394), (21056, 1000486), (23594, 892864), (27902, 755008), (28112, 749368), (31888, 660632), (32128, 655697), (42112, 500243), (47188, 446432), (55804, 377504), (56224, 374684), (63776, 330316), (82579, 255104), (93671, 224896), (94376, 223216), (111608, 188752), (112448, 187342), (127552, 165158)]