28251405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6899}}^1$

素因数の和:6930

約数の個数: 48

約数和(自身を含む): 60278400

約数和(自身を除く): 32026995

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 6899, 20697, 34495, 48293, 62091, 89687, 103485, 144879, 241465, 269061, 310455, 434637, 448435, 627809, 724395, 807183, 1345305, 1883427, 2173185, 3139045, 4035915, 5650281, 9417135, 28251405]

約数ペア:

[(1, 28251405), (3, 9417135), (5, 5650281), (7, 4035915), (9, 3139045), (13, 2173185), (15, 1883427), (21, 1345305), (35, 807183), (39, 724395), (45, 627809), (63, 448435), (65, 434637), (91, 310455), (105, 269061), (117, 241465), (195, 144879), (273, 103485), (315, 89687), (455, 62091), (585, 48293), (819, 34495), (1365, 20697), (4095, 6899)]