21206544

素因数分解:

$2^4\times 3^1\times {\mathrm{107}}^1\times {\mathrm{4129}}^1$

素因数の和:4247

約数の個数: 40

約数和(自身を含む): 55308960

約数和(自身を除く): 34102416

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 107, 214, 321, 428, 642, 856, 1284, 1712, 2568, 4129, 5136, 8258, 12387, 16516, 24774, 33032, 49548, 66064, 99096, 198192, 441803, 883606, 1325409, 1767212, 2650818, 3534424, 5301636, 7068848, 10603272, 21206544]

約数ペア:

[(1, 21206544), (2, 10603272), (3, 7068848), (4, 5301636), (6, 3534424), (8, 2650818), (12, 1767212), (16, 1325409), (24, 883606), (48, 441803), (107, 198192), (214, 99096), (321, 66064), (428, 49548), (642, 33032), (856, 24774), (1284, 16516), (1712, 12387), (2568, 8258), (4129, 5136)]