21420804958

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1321}}^1\times {\mathrm{50359}}^1$

素因数の和:51712

約数の個数: 32

約数和(自身を含む): 38347729920

約数和(自身を除く): 16926924962

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 1321, 2642, 9247, 18494, 30383, 50359, 60766, 100718, 212681, 352513, 425362, 705026, 1158257, 2316514, 8107799, 16215598, 66524239, 133048478, 465669673, 931339346, 1530057497, 3060114994, 10710402479, 21420804958]

約数ペア:

[(1, 21420804958), (2, 10710402479), (7, 3060114994), (14, 1530057497), (23, 931339346), (46, 465669673), (161, 133048478), (322, 66524239), (1321, 16215598), (2642, 8107799), (9247, 2316514), (18494, 1158257), (30383, 705026), (50359, 425362), (60766, 352513), (100718, 212681)]