21200004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{84127}}^1$

素因数の和:84144

約数の個数: 36

約数和(自身を含む): 61245184

約数和(自身を除く): 40045180

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 84127, 168254, 252381, 336508, 504762, 588889, 757143, 1009524, 1177778, 1514286, 1766667, 2355556, 3028572, 3533334, 5300001, 7066668, 10600002, 21200004]

約数ペア:

[(1, 21200004), (2, 10600002), (3, 7066668), (4, 5300001), (6, 3533334), (7, 3028572), (9, 2355556), (12, 1766667), (14, 1514286), (18, 1177778), (21, 1009524), (28, 757143), (36, 588889), (42, 504762), (63, 336508), (84, 252381), (126, 168254), (252, 84127)]