20887312

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 42586560

約数和(自身を除く): 21699248

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 211, 269, 368, 422, 538, 844, 1076, 1688, 2152, 3376, 4304, 4853, 6187, 9706, 12374, 19412, 24748, 38824, 49496, 56759, 77648, 98992, 113518, 227036, 454072, 908144, 1305457, 2610914, 5221828, 10443656, 20887312]

約数ペア:

[(1, 20887312), (2, 10443656), (4, 5221828), (8, 2610914), (16, 1305457), (23, 908144), (46, 454072), (92, 227036), (184, 113518), (211, 98992), (269, 77648), (368, 56759), (422, 49496), (538, 38824), (844, 24748), (1076, 19412), (1688, 12374), (2152, 9706), (3376, 6187), (4304, 4853)]