21817628

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 45769920

約数和(自身を除く): 23952292

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 97, 116, 194, 203, 277, 388, 406, 554, 679, 812, 1108, 1358, 1939, 2716, 2813, 3878, 5626, 7756, 8033, 11252, 16066, 19691, 26869, 32132, 39382, 53738, 56231, 78764, 107476, 112462, 188083, 224924, 376166, 752332, 779201, 1558402, 3116804, 5454407, 10908814, 21817628]

約数ペア:

[(1, 21817628), (2, 10908814), (4, 5454407), (7, 3116804), (14, 1558402), (28, 779201), (29, 752332), (58, 376166), (97, 224924), (116, 188083), (194, 112462), (203, 107476), (277, 78764), (388, 56231), (406, 53738), (554, 39382), (679, 32132), (812, 26869), (1108, 19691), (1358, 16066), (1939, 11252), (2716, 8033), (2813, 7756), (3878, 5626)]