21518156

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1933}}^1$

素因数の和:1982

約数の個数: 36

約数和(自身を含む): 43213296

約数和(自身を除く): 21695140

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1933, 2783, 3866, 5566, 7732, 11132, 21263, 42526, 44459, 85052, 88918, 177836, 233893, 467786, 489049, 935572, 978098, 1956196, 5379539, 10759078, 21518156]

約数ペア:

[(1, 21518156), (2, 10759078), (4, 5379539), (11, 1956196), (22, 978098), (23, 935572), (44, 489049), (46, 467786), (92, 233893), (121, 177836), (242, 88918), (253, 85052), (484, 44459), (506, 42526), (1012, 21263), (1933, 11132), (2783, 7732), (3866, 5566)]