20896827

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{631}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 33976320

約数和(自身を除く): 13079493

約数列:

[1, 3, 7, 19, 21, 57, 83, 133, 249, 399, 581, 631, 1577, 1743, 1893, 4417, 4731, 11039, 11989, 13251, 33117, 35967, 52373, 83923, 157119, 251769, 366611, 995087, 1099833, 2985261, 6965609, 20896827]

約数ペア:

[(1, 20896827), (3, 6965609), (7, 2985261), (19, 1099833), (21, 995087), (57, 366611), (83, 251769), (133, 157119), (249, 83923), (399, 52373), (581, 35967), (631, 33117), (1577, 13251), (1743, 11989), (1893, 11039), (4417, 4731)]