17781946

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2383}}^1$

素因数の和:2446

約数の個数: 32

約数和(自身を含む): 33643008

約数和(自身を除く): 15861062

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 182, 287, 533, 574, 1066, 2383, 3731, 4766, 7462, 16681, 30979, 33362, 61958, 97703, 195406, 216853, 433706, 683921, 1270139, 1367842, 2540278, 8890973, 17781946]

約数ペア:

[(1, 17781946), (2, 8890973), (7, 2540278), (13, 1367842), (14, 1270139), (26, 683921), (41, 433706), (82, 216853), (91, 195406), (182, 97703), (287, 61958), (533, 33362), (574, 30979), (1066, 16681), (2383, 7462), (3731, 4766)]