20913732

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2243}}^1$

素因数の和:2297

約数の個数: 72

約数和(自身を含む): 62078016

約数和(自身を除く): 41164284

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2243, 2331, 3108, 4486, 4662, 6729, 8972, 9324, 13458, 15701, 20187, 26916, 31402, 40374, 47103, 62804, 80748, 82991, 94206, 141309, 165982, 188412, 248973, 282618, 331964, 497946, 565236, 580937, 746919, 995892, 1161874, 1493838, 1742811, 2323748, 2987676, 3485622, 5228433, 6971244, 10456866, 20913732]

約数ペア:

[(1, 20913732), (2, 10456866), (3, 6971244), (4, 5228433), (6, 3485622), (7, 2987676), (9, 2323748), (12, 1742811), (14, 1493838), (18, 1161874), (21, 995892), (28, 746919), (36, 580937), (37, 565236), (42, 497946), (63, 331964), (74, 282618), (84, 248973), (111, 188412), (126, 165982), (148, 141309), (222, 94206), (252, 82991), (259, 80748), (333, 62804), (444, 47103), (518, 40374), (666, 31402), (777, 26916), (1036, 20187), (1332, 15701), (1554, 13458), (2243, 9324), (2331, 8972), (3108, 6729), (4486, 4662)]