21255491

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 23701248

約数和(自身を除く): 2445757

約数列:

[1, 17, 31, 53, 527, 761, 901, 1643, 12937, 23591, 27931, 40333, 401047, 685661, 1250323, 21255491]

約数ペア:

[(1, 21255491), (17, 1250323), (31, 685661), (53, 401047), (527, 40333), (761, 27931), (901, 23591), (1643, 12937)]