20216474676

素因数分解:

$2^2\times 3^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{51421}}^1$

素因数の和:51661

約数の個数: 72

約数和(自身を含む): 52184691104

約数和(自身を除く): 31968216428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 67, 134, 163, 201, 268, 326, 402, 489, 603, 652, 804, 978, 1206, 1467, 1956, 2412, 2934, 5868, 10921, 21842, 32763, 43684, 51421, 65526, 98289, 102842, 131052, 154263, 196578, 205684, 308526, 393156, 462789, 617052, 925578, 1851156, 3445207, 6890414, 8381623, 10335621, 13780828, 16763246, 20671242, 25144869, 31006863, 33526492, 41342484, 50289738, 62013726, 75434607, 100579476, 124027452, 150869214, 301738428, 561568741, 1123137482, 1684706223, 2246274964, 3369412446, 5054118669, 6738824892, 10108237338, 20216474676]

約数ペア:

[(1, 20216474676), (2, 10108237338), (3, 6738824892), (4, 5054118669), (6, 3369412446), (9, 2246274964), (12, 1684706223), (18, 1123137482), (36, 561568741), (67, 301738428), (134, 150869214), (163, 124027452), (201, 100579476), (268, 75434607), (326, 62013726), (402, 50289738), (489, 41342484), (603, 33526492), (652, 31006863), (804, 25144869), (978, 20671242), (1206, 16763246), (1467, 13780828), (1956, 10335621), (2412, 8381623), (2934, 6890414), (5868, 3445207), (10921, 1851156), (21842, 925578), (32763, 617052), (43684, 462789), (51421, 393156), (65526, 308526), (98289, 205684), (102842, 196578), (131052, 154263)]