21000355035

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{469649}}^1$

素因数の和:469939

約数の個数: 32

約数和(自身を含む): 36790502400

約数和(自身を除く): 15790147365

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 271, 813, 1355, 2981, 4065, 8943, 14905, 44715, 469649, 1408947, 2348245, 5166139, 7044735, 15498417, 25830695, 77492085, 127274879, 381824637, 636374395, 1400023669, 1909123185, 4200071007, 7000118345, 21000355035]

約数ペア:

[(1, 21000355035), (3, 7000118345), (5, 4200071007), (11, 1909123185), (15, 1400023669), (33, 636374395), (55, 381824637), (165, 127274879), (271, 77492085), (813, 25830695), (1355, 15498417), (2981, 7044735), (4065, 5166139), (8943, 2348245), (14905, 1408947), (44715, 469649)]