21721644

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{86197}}^1$

素因数の和:86214

約数の個数: 36

約数和(自身を含む): 62752144

約数和(自身を除く): 41030500

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 86197, 172394, 258591, 344788, 517182, 603379, 775773, 1034364, 1206758, 1551546, 1810137, 2413516, 3103092, 3620274, 5430411, 7240548, 10860822, 21721644]

約数ペア:

[(1, 21721644), (2, 10860822), (3, 7240548), (4, 5430411), (6, 3620274), (7, 3103092), (9, 2413516), (12, 1810137), (14, 1551546), (18, 1206758), (21, 1034364), (28, 775773), (36, 603379), (42, 517182), (63, 344788), (84, 258591), (126, 172394), (252, 86197)]