20983528

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 40907520

約数和(自身を除く): 19923992

約数列:

[1, 2, 4, 8, 31, 62, 124, 211, 248, 401, 422, 802, 844, 1604, 1688, 3208, 6541, 12431, 13082, 24862, 26164, 49724, 52328, 84611, 99448, 169222, 338444, 676888, 2622941, 5245882, 10491764, 20983528]

約数ペア:

[(1, 20983528), (2, 10491764), (4, 5245882), (8, 2622941), (31, 676888), (62, 338444), (124, 169222), (211, 99448), (248, 84611), (401, 52328), (422, 49724), (802, 26164), (844, 24862), (1604, 13082), (1688, 12431), (3208, 6541)]