21253430

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{1913}}^1$

素因数の和:2032

約数の個数: 32

約数和(自身を含む): 42169248

約数和(自身を除く): 20915818

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 1913, 2222, 3826, 5555, 9565, 11110, 19130, 21043, 42086, 105215, 193213, 210430, 386426, 966065, 1932130, 2125343, 4250686, 10626715, 21253430]

約数ペア:

[(1, 21253430), (2, 10626715), (5, 4250686), (10, 2125343), (11, 1932130), (22, 966065), (55, 386426), (101, 210430), (110, 193213), (202, 105215), (505, 42086), (1010, 21043), (1111, 19130), (1913, 11110), (2222, 9565), (3826, 5555)]