20561369082

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{587}}^1\times {\mathrm{991}}^1$

素因数の和:1763

約数の個数: 64

約数和(自身を含む): 42501279744

約数和(自身を除く): 21939910662

約数列:

[1, 2, 3, 6, 43, 86, 129, 137, 258, 274, 411, 587, 822, 991, 1174, 1761, 1982, 2973, 3522, 5891, 5946, 11782, 17673, 25241, 35346, 42613, 50482, 75723, 80419, 85226, 127839, 135767, 151446, 160838, 241257, 255678, 271534, 407301, 482514, 581717, 814602, 1163434, 1745151, 3458017, 3490302, 5837981, 6916034, 10374051, 11675962, 17513943, 20748102, 25013831, 35027886, 50027662, 75041493, 79695229, 150082986, 159390458, 239085687, 478171374, 3426894847, 6853789694, 10280684541, 20561369082]

約数ペア:

[(1, 20561369082), (2, 10280684541), (3, 6853789694), (6, 3426894847), (43, 478171374), (86, 239085687), (129, 159390458), (137, 150082986), (258, 79695229), (274, 75041493), (411, 50027662), (587, 35027886), (822, 25013831), (991, 20748102), (1174, 17513943), (1761, 11675962), (1982, 10374051), (2973, 6916034), (3522, 5837981), (5891, 3490302), (5946, 3458017), (11782, 1745151), (17673, 1163434), (25241, 814602), (35346, 581717), (42613, 482514), (50482, 407301), (75723, 271534), (80419, 255678), (85226, 241257), (127839, 160838), (135767, 151446)]