21199592

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{661}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 42103200

約数和(自身を除く): 20903608

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 211, 422, 661, 844, 1322, 1688, 2644, 4009, 5288, 8018, 12559, 16036, 25118, 32072, 50236, 100472, 139471, 278942, 557884, 1115768, 2649949, 5299898, 10599796, 21199592]

約数ペア:

[(1, 21199592), (2, 10599796), (4, 5299898), (8, 2649949), (19, 1115768), (38, 557884), (76, 278942), (152, 139471), (211, 100472), (422, 50236), (661, 32072), (844, 25118), (1322, 16036), (1688, 12559), (2644, 8018), (4009, 5288)]