21455672

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{7229}}^1$

素因数の和:7295

約数の個数: 32

約数和(自身を含む): 46850400

約数和(自身を除く): 25394728

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 7229, 14458, 28916, 50603, 57832, 101206, 202412, 383137, 404824, 766274, 1532548, 2681959, 3065096, 5363918, 10727836, 21455672]

約数ペア:

[(1, 21455672), (2, 10727836), (4, 5363918), (7, 3065096), (8, 2681959), (14, 1532548), (28, 766274), (53, 404824), (56, 383137), (106, 202412), (212, 101206), (371, 57832), (424, 50603), (742, 28916), (1484, 14458), (2968, 7229)]