21084833

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^2$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 27123264

約数和(自身を除く): 6038431

約数列:

[1, 7, 11, 61, 67, 77, 427, 469, 671, 737, 4087, 4489, 4697, 5159, 28609, 31423, 44957, 49379, 273829, 314699, 345653, 1916803, 3012119, 21084833]

約数ペア:

[(1, 21084833), (7, 3012119), (11, 1916803), (61, 345653), (67, 314699), (77, 273829), (427, 49379), (469, 44957), (671, 31423), (737, 28609), (4087, 5159), (4489, 4697)]