20809901238

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{53}}^1\times {\mathrm{190787}}^1$

素因数の和:190866

約数の個数: 64

約数和(自身を含む): 49452249600

約数和(自身を除く): 28642348362

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 53, 98, 106, 147, 159, 294, 318, 343, 371, 686, 742, 1029, 1113, 2058, 2226, 2597, 5194, 7791, 15582, 18179, 36358, 54537, 109074, 190787, 381574, 572361, 1144722, 1335509, 2671018, 4006527, 8013054, 9348563, 10111711, 18697126, 20223422, 28045689, 30335133, 56091378, 60670266, 65439941, 70781977, 130879882, 141563954, 196319823, 212345931, 392639646, 424691862, 495473839, 990947678, 1486421517, 2972843034, 3468316873, 6936633746, 10404950619, 20809901238]

約数ペア:

[(1, 20809901238), (2, 10404950619), (3, 6936633746), (6, 3468316873), (7, 2972843034), (14, 1486421517), (21, 990947678), (42, 495473839), (49, 424691862), (53, 392639646), (98, 212345931), (106, 196319823), (147, 141563954), (159, 130879882), (294, 70781977), (318, 65439941), (343, 60670266), (371, 56091378), (686, 30335133), (742, 28045689), (1029, 20223422), (1113, 18697126), (2058, 10111711), (2226, 9348563), (2597, 8013054), (5194, 4006527), (7791, 2671018), (15582, 1335509), (18179, 1144722), (36358, 572361), (54537, 381574), (109074, 190787)]