25215183

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12911}}^1$

素因数の和:12955

約数の個数: 24

約数和(自身を含む): 42971136

約数和(自身を除く): 17755953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 12911, 38733, 90377, 116199, 271131, 400241, 813393, 1200723, 2801687, 3602169, 8405061, 25215183]

約数ペア:

[(1, 25215183), (3, 8405061), (7, 3602169), (9, 2801687), (21, 1200723), (31, 813393), (63, 400241), (93, 271131), (217, 116199), (279, 90377), (651, 38733), (1953, 12911)]