21211938

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{719}}^1$

素因数の和:887

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 29332062

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 149, 198, 298, 447, 719, 894, 1341, 1438, 1639, 2157, 2682, 3278, 4314, 4917, 6471, 7909, 9834, 12942, 14751, 15818, 23727, 29502, 47454, 71181, 107131, 142362, 214262, 321393, 642786, 964179, 1178441, 1928358, 2356882, 3535323, 7070646, 10605969, 21211938]

約数ペア:

[(1, 21211938), (2, 10605969), (3, 7070646), (6, 3535323), (9, 2356882), (11, 1928358), (18, 1178441), (22, 964179), (33, 642786), (66, 321393), (99, 214262), (149, 142362), (198, 107131), (298, 71181), (447, 47454), (719, 29502), (894, 23727), (1341, 15818), (1438, 14751), (1639, 12942), (2157, 9834), (2682, 7909), (3278, 6471), (4314, 4917)]