20545712

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1091}}^1$

素因数の和:1217

約数の個数: 40

約数和(自身を含む): 43872192

約数和(自身を除く): 23326480

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 107, 176, 214, 428, 856, 1091, 1177, 1712, 2182, 2354, 4364, 4708, 8728, 9416, 12001, 17456, 18832, 24002, 48004, 96008, 116737, 192016, 233474, 466948, 933896, 1284107, 1867792, 2568214, 5136428, 10272856, 20545712]

約数ペア:

[(1, 20545712), (2, 10272856), (4, 5136428), (8, 2568214), (11, 1867792), (16, 1284107), (22, 933896), (44, 466948), (88, 233474), (107, 192016), (176, 116737), (214, 96008), (428, 48004), (856, 24002), (1091, 18832), (1177, 17456), (1712, 12001), (2182, 9416), (2354, 8728), (4364, 4708)]