21932020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 50694336

約数和(自身を除く): 28762316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 655, 761, 1310, 1441, 1522, 2620, 2882, 3044, 3805, 5764, 7205, 7610, 8371, 14410, 15220, 16742, 28820, 33484, 41855, 83710, 99691, 167420, 199382, 398764, 498455, 996910, 1096601, 1993820, 2193202, 4386404, 5483005, 10966010, 21932020]

約数ペア:

[(1, 21932020), (2, 10966010), (4, 5483005), (5, 4386404), (10, 2193202), (11, 1993820), (20, 1096601), (22, 996910), (44, 498455), (55, 398764), (110, 199382), (131, 167420), (220, 99691), (262, 83710), (524, 41855), (655, 33484), (761, 28820), (1310, 16742), (1441, 15220), (1522, 14410), (2620, 8371), (2882, 7610), (3044, 7205), (3805, 5764)]