78716211

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 123475968

約数和(自身を除く): 44759757

約数列:

[1, 3, 7, 21, 47, 141, 173, 329, 461, 519, 987, 1211, 1383, 3227, 3633, 8131, 9681, 21667, 24393, 56917, 65001, 79753, 151669, 170751, 239259, 455007, 558271, 1674813, 3748391, 11245173, 26238737, 78716211]

約数ペア:

[(1, 78716211), (3, 26238737), (7, 11245173), (21, 3748391), (47, 1674813), (141, 558271), (173, 455007), (329, 239259), (461, 170751), (519, 151669), (987, 79753), (1211, 65001), (1383, 56917), (3227, 24393), (3633, 21667), (8131, 9681)]