21029613

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{269}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 32348160

約数和(自身を除く): 11318547

約数列:

[1, 3, 11, 23, 33, 69, 103, 253, 269, 309, 759, 807, 1133, 2369, 2959, 3399, 6187, 7107, 8877, 18561, 26059, 27707, 68057, 78177, 83121, 204171, 304777, 637261, 914331, 1911783, 7009871, 21029613]

約数ペア:

[(1, 21029613), (3, 7009871), (11, 1911783), (23, 914331), (33, 637261), (69, 304777), (103, 204171), (253, 83121), (269, 78177), (309, 68057), (759, 27707), (807, 26059), (1133, 18561), (2369, 8877), (2959, 7107), (3399, 6187)]