21678776

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1907}}^1$

素因数の和:1956

約数の個数: 48

約数和(自身を含む): 48940200

約数和(自身を除く): 27261424

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 49, 56, 58, 98, 116, 196, 203, 232, 392, 406, 812, 1421, 1624, 1907, 2842, 3814, 5684, 7628, 11368, 13349, 15256, 26698, 53396, 55303, 93443, 106792, 110606, 186886, 221212, 373772, 387121, 442424, 747544, 774242, 1548484, 2709847, 3096968, 5419694, 10839388, 21678776]

約数ペア:

[(1, 21678776), (2, 10839388), (4, 5419694), (7, 3096968), (8, 2709847), (14, 1548484), (28, 774242), (29, 747544), (49, 442424), (56, 387121), (58, 373772), (98, 221212), (116, 186886), (196, 110606), (203, 106792), (232, 93443), (392, 55303), (406, 53396), (812, 26698), (1421, 15256), (1624, 13349), (1907, 11368), (2842, 7628), (3814, 5684)]