20941566128

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1815323}}^1$

素因数の和:1815441

約数の個数: 40

約数和(自身を含む): 46820836608

約数和(自身を除く): 25879270480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1442, 1648, 2884, 5768, 11536, 1815323, 3630646, 7261292, 12707261, 14522584, 25414522, 29045168, 50829044, 101658088, 186978269, 203316176, 373956538, 747913076, 1308847883, 1495826152, 2617695766, 2991652304, 5235391532, 10470783064, 20941566128]

約数ペア:

[(1, 20941566128), (2, 10470783064), (4, 5235391532), (7, 2991652304), (8, 2617695766), (14, 1495826152), (16, 1308847883), (28, 747913076), (56, 373956538), (103, 203316176), (112, 186978269), (206, 101658088), (412, 50829044), (721, 29045168), (824, 25414522), (1442, 14522584), (1648, 12707261), (2884, 7261292), (5768, 3630646), (11536, 1815323)]