18934888

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1$

素因数の和:338

約数の個数: 64

約数和(自身を含む): 43211520

約数和(自身を除く): 24276632

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 56, 61, 92, 122, 161, 184, 241, 244, 322, 427, 482, 488, 644, 854, 964, 1288, 1403, 1687, 1708, 1928, 2806, 3374, 3416, 5543, 5612, 6748, 9821, 11086, 11224, 13496, 14701, 19642, 22172, 29402, 38801, 39284, 44344, 58804, 77602, 78568, 102907, 117608, 155204, 205814, 310408, 338123, 411628, 676246, 823256, 1352492, 2366861, 2704984, 4733722, 9467444, 18934888]

約数ペア:

[(1, 18934888), (2, 9467444), (4, 4733722), (7, 2704984), (8, 2366861), (14, 1352492), (23, 823256), (28, 676246), (46, 411628), (56, 338123), (61, 310408), (92, 205814), (122, 155204), (161, 117608), (184, 102907), (241, 78568), (244, 77602), (322, 58804), (427, 44344), (482, 39284), (488, 38801), (644, 29402), (854, 22172), (964, 19642), (1288, 14701), (1403, 13496), (1687, 11224), (1708, 11086), (1928, 9821), (2806, 6748), (3374, 5612), (3416, 5543)]