20903508

素因数分解:

$2^2\times 3^4\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:598

約数の個数: 60

約数和(自身を含む): 55139700

約数和(自身を除く): 34236192

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 149, 162, 298, 324, 433, 447, 596, 866, 894, 1299, 1341, 1732, 1788, 2598, 2682, 3897, 4023, 5196, 5364, 7794, 8046, 11691, 12069, 15588, 16092, 23382, 24138, 35073, 46764, 48276, 64517, 70146, 129034, 140292, 193551, 258068, 387102, 580653, 774204, 1161306, 1741959, 2322612, 3483918, 5225877, 6967836, 10451754, 20903508]

約数ペア:

[(1, 20903508), (2, 10451754), (3, 6967836), (4, 5225877), (6, 3483918), (9, 2322612), (12, 1741959), (18, 1161306), (27, 774204), (36, 580653), (54, 387102), (81, 258068), (108, 193551), (149, 140292), (162, 129034), (298, 70146), (324, 64517), (433, 48276), (447, 46764), (596, 35073), (866, 24138), (894, 23382), (1299, 16092), (1341, 15588), (1732, 12069), (1788, 11691), (2598, 8046), (2682, 7794), (3897, 5364), (4023, 5196)]