21449968215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{6997}}^1$

素因数の和:7296

約数の個数: 64

約数和(自身を含む): 37621248000

約数和(自身を除く): 16171279785

約数列:

[1, 3, 5, 13, 15, 39, 65, 79, 195, 199, 237, 395, 597, 995, 1027, 1185, 2587, 2985, 3081, 5135, 6997, 7761, 12935, 15405, 15721, 20991, 34985, 38805, 47163, 78605, 90961, 104955, 204373, 235815, 272883, 454805, 552763, 613119, 1021865, 1364415, 1392403, 1658289, 2763815, 3065595, 4177209, 6962015, 7185919, 8291445, 18101239, 20886045, 21557757, 35929595, 54303717, 90506195, 107788785, 109999837, 271518585, 329999511, 549999185, 1429997881, 1649997555, 4289993643, 7149989405, 21449968215]

約数ペア:

[(1, 21449968215), (3, 7149989405), (5, 4289993643), (13, 1649997555), (15, 1429997881), (39, 549999185), (65, 329999511), (79, 271518585), (195, 109999837), (199, 107788785), (237, 90506195), (395, 54303717), (597, 35929595), (995, 21557757), (1027, 20886045), (1185, 18101239), (2587, 8291445), (2985, 7185919), (3081, 6962015), (5135, 4177209), (6997, 3065595), (7761, 2763815), (12935, 1658289), (15405, 1392403), (15721, 1364415), (20991, 1021865), (34985, 613119), (38805, 552763), (47163, 454805), (78605, 272883), (90961, 235815), (104955, 204373)]