20331276

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:579

約数の個数: 72

約数和(自身を含む): 56077056

約数和(自身を除く): 35745780

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 71, 84, 98, 142, 147, 196, 213, 284, 294, 426, 487, 497, 588, 852, 974, 994, 1461, 1491, 1948, 1988, 2922, 2982, 3409, 3479, 5844, 5964, 6818, 6958, 10227, 10437, 13636, 13916, 20454, 20874, 23863, 34577, 40908, 41748, 47726, 69154, 71589, 95452, 103731, 138308, 143178, 207462, 242039, 286356, 414924, 484078, 726117, 968156, 1452234, 1694273, 2904468, 3388546, 5082819, 6777092, 10165638, 20331276]

約数ペア:

[(1, 20331276), (2, 10165638), (3, 6777092), (4, 5082819), (6, 3388546), (7, 2904468), (12, 1694273), (14, 1452234), (21, 968156), (28, 726117), (42, 484078), (49, 414924), (71, 286356), (84, 242039), (98, 207462), (142, 143178), (147, 138308), (196, 103731), (213, 95452), (284, 71589), (294, 69154), (426, 47726), (487, 41748), (497, 40908), (588, 34577), (852, 23863), (974, 20874), (994, 20454), (1461, 13916), (1491, 13636), (1948, 10437), (1988, 10227), (2922, 6958), (2982, 6818), (3409, 5964), (3479, 5844)]