18972206

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{227}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 13531474

約数列:

[1, 2, 11, 22, 29, 58, 131, 227, 262, 319, 454, 638, 1441, 2497, 2882, 3799, 4994, 6583, 7598, 13166, 29737, 41789, 59474, 72413, 83578, 144826, 327107, 654214, 862373, 1724746, 9486103, 18972206]

約数ペア:

[(1, 18972206), (2, 9486103), (11, 1724746), (22, 862373), (29, 654214), (58, 327107), (131, 144826), (227, 83578), (262, 72413), (319, 59474), (454, 41789), (638, 29737), (1441, 13166), (2497, 7598), (2882, 6583), (3799, 4994)]