18220323

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 27878400

約数和(自身を除く): 9658077

約数列:

[1, 3, 11, 29, 33, 79, 87, 237, 241, 319, 723, 869, 957, 2291, 2607, 2651, 6873, 6989, 7953, 19039, 20967, 25201, 57117, 75603, 76879, 209429, 230637, 552131, 628287, 1656393, 6073441, 18220323]

約数ペア:

[(1, 18220323), (3, 6073441), (11, 1656393), (29, 628287), (33, 552131), (79, 230637), (87, 209429), (237, 76879), (241, 75603), (319, 57117), (723, 25201), (869, 20967), (957, 19039), (2291, 7953), (2607, 6989), (2651, 6873)]