21057918

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{2801}}^1$

素因数の和:2992

約数の個数: 32

約数和(自身を含む): 48418560

約数和(自身を除く): 27360642

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 179, 358, 537, 1074, 1253, 2506, 2801, 3759, 5602, 7518, 8403, 16806, 19607, 39214, 58821, 117642, 501379, 1002758, 1504137, 3008274, 3509653, 7019306, 10528959, 21057918]

約数ペア:

[(1, 21057918), (2, 10528959), (3, 7019306), (6, 3509653), (7, 3008274), (14, 1504137), (21, 1002758), (42, 501379), (179, 117642), (358, 58821), (537, 39214), (1074, 19607), (1253, 16806), (2506, 8403), (2801, 7518), (3759, 5602)]