20121759

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10303}}^1$

素因数の和:10347

約数の個数: 24

約数和(自身を含む): 34291712

約数和(自身を除く): 14169953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10303, 30909, 72121, 92727, 216363, 319393, 649089, 958179, 2235751, 2874537, 6707253, 20121759]

約数ペア:

[(1, 20121759), (3, 6707253), (7, 2874537), (9, 2235751), (21, 958179), (31, 649089), (63, 319393), (93, 216363), (217, 92727), (279, 72121), (651, 30909), (1953, 10303)]