21685416

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{21013}}^1$

素因数の和:21065

約数の個数: 32

約数和(自身を含む): 55476960

約数和(自身を除く): 33791544

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 21013, 42026, 63039, 84052, 126078, 168104, 252156, 504312, 903559, 1807118, 2710677, 3614236, 5421354, 7228472, 10842708, 21685416]

約数ペア:

[(1, 21685416), (2, 10842708), (3, 7228472), (4, 5421354), (6, 3614236), (8, 2710677), (12, 1807118), (24, 903559), (43, 504312), (86, 252156), (129, 168104), (172, 126078), (258, 84052), (344, 63039), (516, 42026), (1032, 21013)]