20009556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{293}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 58216704

約数和(自身を除く): 38207148

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 271, 293, 542, 586, 813, 879, 1084, 1172, 1626, 1758, 1897, 2051, 2439, 2637, 3252, 3516, 3794, 4102, 4878, 5274, 5691, 6153, 7588, 8204, 9756, 10548, 11382, 12306, 17073, 18459, 22764, 24612, 34146, 36918, 68292, 73836, 79403, 158806, 238209, 317612, 476418, 555821, 714627, 952836, 1111642, 1429254, 1667463, 2223284, 2858508, 3334926, 5002389, 6669852, 10004778, 20009556]

約数ペア:

[(1, 20009556), (2, 10004778), (3, 6669852), (4, 5002389), (6, 3334926), (7, 2858508), (9, 2223284), (12, 1667463), (14, 1429254), (18, 1111642), (21, 952836), (28, 714627), (36, 555821), (42, 476418), (63, 317612), (84, 238209), (126, 158806), (252, 79403), (271, 73836), (293, 68292), (542, 36918), (586, 34146), (813, 24612), (879, 22764), (1084, 18459), (1172, 17073), (1626, 12306), (1758, 11382), (1897, 10548), (2051, 9756), (2439, 8204), (2637, 7588), (3252, 6153), (3516, 5691), (3794, 5274), (4102, 4878)]