19729930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{2161}}^1$

素因数の和:2262

約数の個数: 32

約数和(自身を含む): 39227328

約数和(自身を除く): 19497398

約数列:

[1, 2, 5, 10, 11, 22, 55, 83, 110, 166, 415, 830, 913, 1826, 2161, 4322, 4565, 9130, 10805, 21610, 23771, 47542, 118855, 179363, 237710, 358726, 896815, 1793630, 1972993, 3945986, 9864965, 19729930]

約数ペア:

[(1, 19729930), (2, 9864965), (5, 3945986), (10, 1972993), (11, 1793630), (22, 896815), (55, 358726), (83, 237710), (110, 179363), (166, 118855), (415, 47542), (830, 23771), (913, 21610), (1826, 10805), (2161, 9130), (4322, 4565)]