21197008

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1464

約数の個数: 60

約数和(自身を含む): 50324160

約数和(自身を除く): 29127152

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 49, 56, 76, 98, 112, 133, 152, 196, 266, 304, 392, 532, 784, 931, 1064, 1423, 1862, 2128, 2846, 3724, 5692, 7448, 9961, 11384, 14896, 19922, 22768, 27037, 39844, 54074, 69727, 79688, 108148, 139454, 159376, 189259, 216296, 278908, 378518, 432592, 557816, 757036, 1115632, 1324813, 1514072, 2649626, 3028144, 5299252, 10598504, 21197008]

約数ペア:

[(1, 21197008), (2, 10598504), (4, 5299252), (7, 3028144), (8, 2649626), (14, 1514072), (16, 1324813), (19, 1115632), (28, 757036), (38, 557816), (49, 432592), (56, 378518), (76, 278908), (98, 216296), (112, 189259), (133, 159376), (152, 139454), (196, 108148), (266, 79688), (304, 69727), (392, 54074), (532, 39844), (784, 27037), (931, 22768), (1064, 19922), (1423, 14896), (1862, 11384), (2128, 9961), (2846, 7448), (3724, 5692)]