21097538

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19571}}^1$

素因数の和:19598

約数の個数: 24

約数和(自身を含む): 40161744

約数和(自身を除く): 19064206

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19571, 39142, 136997, 215281, 273994, 430562, 958979, 1506967, 1917958, 3013934, 10548769, 21097538]

約数ペア:

[(1, 21097538), (2, 10548769), (7, 3013934), (11, 1917958), (14, 1506967), (22, 958979), (49, 430562), (77, 273994), (98, 215281), (154, 136997), (539, 39142), (1078, 19571)]