15868216

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 37255680

約数和(自身を除く): 21387464

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 71, 91, 104, 142, 182, 284, 307, 364, 497, 568, 614, 728, 923, 994, 1228, 1846, 1988, 2149, 2456, 3692, 3976, 3991, 4298, 6461, 7384, 7982, 8596, 12922, 15964, 17192, 21797, 25844, 27937, 31928, 43594, 51688, 55874, 87188, 111748, 152579, 174376, 223496, 283361, 305158, 566722, 610316, 1133444, 1220632, 1983527, 2266888, 3967054, 7934108, 15868216]

約数ペア:

[(1, 15868216), (2, 7934108), (4, 3967054), (7, 2266888), (8, 1983527), (13, 1220632), (14, 1133444), (26, 610316), (28, 566722), (52, 305158), (56, 283361), (71, 223496), (91, 174376), (104, 152579), (142, 111748), (182, 87188), (284, 55874), (307, 51688), (364, 43594), (497, 31928), (568, 27937), (614, 25844), (728, 21797), (923, 17192), (994, 15964), (1228, 12922), (1846, 8596), (1988, 7982), (2149, 7384), (2456, 6461), (3692, 4298), (3976, 3991)]