2649465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 5660928

約数和(自身を除く): 3011463

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 647, 819, 1365, 1941, 3235, 4095, 4529, 5823, 8411, 9705, 13587, 22645, 25233, 29115, 40761, 42055, 58877, 67935, 75699, 126165, 176631, 203805, 294385, 378495, 529893, 883155, 2649465]

約数ペア:

[(1, 2649465), (3, 883155), (5, 529893), (7, 378495), (9, 294385), (13, 203805), (15, 176631), (21, 126165), (35, 75699), (39, 67935), (45, 58877), (63, 42055), (65, 40761), (91, 29115), (105, 25233), (117, 22645), (195, 13587), (273, 9705), (315, 8411), (455, 5823), (585, 4529), (647, 4095), (819, 3235), (1365, 1941)]