21139966476

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{70571}}^1$

素因数の和:70791

約数の個数: 72

約数和(自身を含む): 54792947664

約数和(自身を除く): 33652981188

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 157, 159, 212, 314, 318, 471, 477, 628, 636, 942, 954, 1413, 1884, 1908, 2826, 5652, 8321, 16642, 24963, 33284, 49926, 70571, 74889, 99852, 141142, 149778, 211713, 282284, 299556, 423426, 635139, 846852, 1270278, 2540556, 3740263, 7480526, 11079647, 11220789, 14961052, 22159294, 22441578, 33238941, 33662367, 44318588, 44883156, 66477882, 67324734, 99716823, 132955764, 134649468, 199433646, 398867292, 587221291, 1174442582, 1761663873, 2348885164, 3523327746, 5284991619, 7046655492, 10569983238, 21139966476]

約数ペア:

[(1, 21139966476), (2, 10569983238), (3, 7046655492), (4, 5284991619), (6, 3523327746), (9, 2348885164), (12, 1761663873), (18, 1174442582), (36, 587221291), (53, 398867292), (106, 199433646), (157, 134649468), (159, 132955764), (212, 99716823), (314, 67324734), (318, 66477882), (471, 44883156), (477, 44318588), (628, 33662367), (636, 33238941), (942, 22441578), (954, 22159294), (1413, 14961052), (1884, 11220789), (1908, 11079647), (2826, 7480526), (5652, 3740263), (8321, 2540556), (16642, 1270278), (24963, 846852), (33284, 635139), (49926, 423426), (70571, 299556), (74889, 282284), (99852, 211713), (141142, 149778)]