21616504

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1291}}^1$

素因数の和:1340

約数の個数: 64

約数和(自身を含む): 52093440

約数和(自身を除く): 30476936

約数列:

[1, 2, 4, 7, 8, 13, 14, 23, 26, 28, 46, 52, 56, 91, 92, 104, 161, 182, 184, 299, 322, 364, 598, 644, 728, 1196, 1288, 1291, 2093, 2392, 2582, 4186, 5164, 8372, 9037, 10328, 16744, 16783, 18074, 29693, 33566, 36148, 59386, 67132, 72296, 117481, 118772, 134264, 207851, 234962, 237544, 386009, 415702, 469924, 772018, 831404, 939848, 1544036, 1662808, 2702063, 3088072, 5404126, 10808252, 21616504]

約数ペア:

[(1, 21616504), (2, 10808252), (4, 5404126), (7, 3088072), (8, 2702063), (13, 1662808), (14, 1544036), (23, 939848), (26, 831404), (28, 772018), (46, 469924), (52, 415702), (56, 386009), (91, 237544), (92, 234962), (104, 207851), (161, 134264), (182, 118772), (184, 117481), (299, 72296), (322, 67132), (364, 59386), (598, 36148), (644, 33566), (728, 29693), (1196, 18074), (1288, 16783), (1291, 16744), (2093, 10328), (2392, 9037), (2582, 8372), (4186, 5164)]