8721468

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{653}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 25710048

約数和(自身を除く): 16988580

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 653, 742, 954, 1113, 1306, 1484, 1908, 1959, 2226, 2612, 3339, 3918, 4452, 4571, 5877, 6678, 7836, 9142, 11754, 13356, 13713, 18284, 23508, 27426, 34609, 41139, 54852, 69218, 82278, 103827, 138436, 164556, 207654, 242263, 311481, 415308, 484526, 622962, 726789, 969052, 1245924, 1453578, 2180367, 2907156, 4360734, 8721468]

約数ペア:

[(1, 8721468), (2, 4360734), (3, 2907156), (4, 2180367), (6, 1453578), (7, 1245924), (9, 969052), (12, 726789), (14, 622962), (18, 484526), (21, 415308), (28, 311481), (36, 242263), (42, 207654), (53, 164556), (63, 138436), (84, 103827), (106, 82278), (126, 69218), (159, 54852), (212, 41139), (252, 34609), (318, 27426), (371, 23508), (477, 18284), (636, 13713), (653, 13356), (742, 11754), (954, 9142), (1113, 7836), (1306, 6678), (1484, 5877), (1908, 4571), (1959, 4452), (2226, 3918), (2612, 3339)]