21207564

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3659}}^1$

素因数の和:3699

約数の個数: 72

約数和(自身を含む): 63947520

約数和(自身を除く): 42739956

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 276, 322, 414, 483, 644, 828, 966, 1449, 1932, 2898, 3659, 5796, 7318, 10977, 14636, 21954, 25613, 32931, 43908, 51226, 65862, 76839, 84157, 102452, 131724, 153678, 168314, 230517, 252471, 307356, 336628, 461034, 504942, 589099, 757413, 922068, 1009884, 1178198, 1514826, 1767297, 2356396, 3029652, 3534594, 5301891, 7069188, 10603782, 21207564]

約数ペア:

[(1, 21207564), (2, 10603782), (3, 7069188), (4, 5301891), (6, 3534594), (7, 3029652), (9, 2356396), (12, 1767297), (14, 1514826), (18, 1178198), (21, 1009884), (23, 922068), (28, 757413), (36, 589099), (42, 504942), (46, 461034), (63, 336628), (69, 307356), (84, 252471), (92, 230517), (126, 168314), (138, 153678), (161, 131724), (207, 102452), (252, 84157), (276, 76839), (322, 65862), (414, 51226), (483, 43908), (644, 32931), (828, 25613), (966, 21954), (1449, 14636), (1932, 10977), (2898, 7318), (3659, 5796)]