21379484

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5741}}^1$

素因数の和:5778

約数の個数: 36

約数和(自身を含む): 45821160

約数和(自身を除く): 24441676

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5741, 11482, 22964, 40187, 80374, 109079, 160748, 218158, 281309, 436316, 562618, 763553, 1125236, 1527106, 3054212, 5344871, 10689742, 21379484]

約数ペア:

[(1, 21379484), (2, 10689742), (4, 5344871), (7, 3054212), (14, 1527106), (19, 1125236), (28, 763553), (38, 562618), (49, 436316), (76, 281309), (98, 218158), (133, 160748), (196, 109079), (266, 80374), (532, 40187), (931, 22964), (1862, 11482), (3724, 5741)]