20994911

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{383}}^1$

素因数の和:622

約数の個数: 16

約数和(自身を含む): 24772608

約数和(自身を除く): 3777697

約数列:

[1, 7, 41, 191, 287, 383, 1337, 2681, 7831, 15703, 54817, 73153, 109921, 512071, 2999273, 20994911]

約数ペア:

[(1, 20994911), (7, 2999273), (41, 512071), (191, 109921), (287, 73153), (383, 54817), (1337, 15703), (2681, 7831)]