20881874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1031}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 15527086

約数列:

[1, 2, 13, 19, 26, 38, 41, 82, 247, 494, 533, 779, 1031, 1066, 1558, 2062, 10127, 13403, 19589, 20254, 26806, 39178, 42271, 84542, 254657, 509314, 549523, 803149, 1099046, 1606298, 10440937, 20881874]

約数ペア:

[(1, 20881874), (2, 10440937), (13, 1606298), (19, 1099046), (26, 803149), (38, 549523), (41, 509314), (82, 254657), (247, 84542), (494, 42271), (533, 39178), (779, 26806), (1031, 20254), (1066, 19589), (1558, 13403), (2062, 10127)]