15721838209

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{7877}}^1$

素因数の和:7955

約数の個数: 48

約数和(自身を含む): 20911363200

約数和(自身を除く): 5189524991

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 343, 529, 539, 1127, 1771, 3703, 3773, 5819, 7877, 7889, 12397, 25921, 40733, 55139, 86647, 86779, 181171, 181447, 285131, 385973, 606529, 1268197, 1992881, 1995917, 2701811, 4166933, 4245703, 8877379, 13950167, 29168531, 29719921, 45836263, 62141653, 97651169, 204179717, 320853841, 683558183, 1429258019, 2245976887, 15721838209]

約数ペア:

[(1, 15721838209), (7, 2245976887), (11, 1429258019), (23, 683558183), (49, 320853841), (77, 204179717), (161, 97651169), (253, 62141653), (343, 45836263), (529, 29719921), (539, 29168531), (1127, 13950167), (1771, 8877379), (3703, 4245703), (3773, 4166933), (5819, 2701811), (7877, 1995917), (7889, 1992881), (12397, 1268197), (25921, 606529), (40733, 385973), (55139, 285131), (86647, 181447), (86779, 181171)]