21581453523

素因数分解:

$3^1\times 7^2\times {\mathrm{1103}}^1\times {\mathrm{133103}}^1$

素因数の和:134223

約数の個数: 24

約数和(自身を含む): 33503874048

約数和(自身を除く): 11922420525

約数列:

[1, 3, 7, 21, 49, 147, 1103, 3309, 7721, 23163, 54047, 133103, 162141, 399309, 931721, 2795163, 6522047, 19566141, 146812609, 440437827, 1027688263, 3083064789, 7193817841, 21581453523]

約数ペア:

[(1, 21581453523), (3, 7193817841), (7, 3083064789), (21, 1027688263), (49, 440437827), (147, 146812609), (1103, 19566141), (3309, 6522047), (7721, 2795163), (23163, 931721), (54047, 399309), (133103, 162141)]