21160304

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{479}}^1$

素因数の和:749

約数の個数: 40

約数和(自身を含む): 44997120

約数和(自身を除く): 23836816

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 251, 479, 502, 958, 1004, 1916, 2008, 2761, 3832, 4016, 5269, 5522, 7664, 10538, 11044, 21076, 22088, 42152, 44176, 84304, 120229, 240458, 480916, 961832, 1322519, 1923664, 2645038, 5290076, 10580152, 21160304]

約数ペア:

[(1, 21160304), (2, 10580152), (4, 5290076), (8, 2645038), (11, 1923664), (16, 1322519), (22, 961832), (44, 480916), (88, 240458), (176, 120229), (251, 84304), (479, 44176), (502, 42152), (958, 22088), (1004, 21076), (1916, 11044), (2008, 10538), (2761, 7664), (3832, 5522), (4016, 5269)]