21951608

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{1931}}^1$

素因数の和:1980

約数の個数: 48

約数和(自身を含む): 49555800

約数和(自身を除く): 27604192

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 49, 56, 58, 98, 116, 196, 203, 232, 392, 406, 812, 1421, 1624, 1931, 2842, 3862, 5684, 7724, 11368, 13517, 15448, 27034, 54068, 55999, 94619, 108136, 111998, 189238, 223996, 378476, 391993, 447992, 756952, 783986, 1567972, 2743951, 3135944, 5487902, 10975804, 21951608]

約数ペア:

[(1, 21951608), (2, 10975804), (4, 5487902), (7, 3135944), (8, 2743951), (14, 1567972), (28, 783986), (29, 756952), (49, 447992), (56, 391993), (58, 378476), (98, 223996), (116, 189238), (196, 111998), (203, 108136), (232, 94619), (392, 55999), (406, 54068), (812, 27034), (1421, 15448), (1624, 13517), (1931, 11368), (2842, 7724), (3862, 5684)]