20477277

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1171}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 31081440

約数和(自身を除く): 10604163

約数列:

[1, 3, 9, 29, 67, 87, 201, 261, 603, 1171, 1943, 3513, 5829, 10539, 17487, 33959, 78457, 101877, 235371, 305631, 706113, 2275253, 6825759, 20477277]

約数ペア:

[(1, 20477277), (3, 6825759), (9, 2275253), (29, 706113), (67, 305631), (87, 235371), (201, 101877), (261, 78457), (603, 33959), (1171, 17487), (1943, 10539), (3513, 5829)]