221405404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{264839}}^1$

素因数の和:264873

約数の個数: 24

約数和(自身を含む): 444931200

約数和(自身を除く): 223525796

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 264839, 529678, 1059356, 2913229, 5031941, 5826458, 10063882, 11652916, 20127764, 55351351, 110702702, 221405404]

約数ペア:

[(1, 221405404), (2, 110702702), (4, 55351351), (11, 20127764), (19, 11652916), (22, 10063882), (38, 5826458), (44, 5031941), (76, 2913229), (209, 1059356), (418, 529678), (836, 264839)]