21392976

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1307}}^1$

素因数の和:1360

約数の個数: 80

約数和(自身を含む): 62281728

約数和(自身を除く): 40888752

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 31, 33, 44, 48, 62, 66, 88, 93, 124, 132, 176, 186, 248, 264, 341, 372, 496, 528, 682, 744, 1023, 1307, 1364, 1488, 2046, 2614, 2728, 3921, 4092, 5228, 5456, 7842, 8184, 10456, 14377, 15684, 16368, 20912, 28754, 31368, 40517, 43131, 57508, 62736, 81034, 86262, 115016, 121551, 162068, 172524, 230032, 243102, 324136, 345048, 445687, 486204, 648272, 690096, 891374, 972408, 1337061, 1782748, 1944816, 2674122, 3565496, 5348244, 7130992, 10696488, 21392976]

約数ペア:

[(1, 21392976), (2, 10696488), (3, 7130992), (4, 5348244), (6, 3565496), (8, 2674122), (11, 1944816), (12, 1782748), (16, 1337061), (22, 972408), (24, 891374), (31, 690096), (33, 648272), (44, 486204), (48, 445687), (62, 345048), (66, 324136), (88, 243102), (93, 230032), (124, 172524), (132, 162068), (176, 121551), (186, 115016), (248, 86262), (264, 81034), (341, 62736), (372, 57508), (496, 43131), (528, 40517), (682, 31368), (744, 28754), (1023, 20912), (1307, 16368), (1364, 15684), (1488, 14377), (2046, 10456), (2614, 8184), (2728, 7842), (3921, 5456), (4092, 5228)]