221432456

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{91957}}^1$

素因数の和:92013

約数の個数: 32

約数和(自身を含む): 485538240

約数和(自身を除く): 264105784

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 91957, 183914, 367828, 643699, 735656, 1287398, 2574796, 3954151, 5149592, 7908302, 15816604, 27679057, 31633208, 55358114, 110716228, 221432456]

約数ペア:

[(1, 221432456), (2, 110716228), (4, 55358114), (7, 31633208), (8, 27679057), (14, 15816604), (28, 7908302), (43, 5149592), (56, 3954151), (86, 2574796), (172, 1287398), (301, 735656), (344, 643699), (602, 367828), (1204, 183914), (2408, 91957)]