20540598

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 45536256

約数和(自身を除く): 24995658

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 141, 169, 282, 338, 431, 507, 611, 862, 1014, 1222, 1293, 1833, 2586, 3666, 5603, 7943, 11206, 15886, 16809, 20257, 23829, 33618, 40514, 47658, 60771, 72839, 121542, 145678, 218517, 263341, 437034, 526682, 790023, 1580046, 3423433, 6846866, 10270299, 20540598]

約数ペア:

[(1, 20540598), (2, 10270299), (3, 6846866), (6, 3423433), (13, 1580046), (26, 790023), (39, 526682), (47, 437034), (78, 263341), (94, 218517), (141, 145678), (169, 121542), (282, 72839), (338, 60771), (431, 47658), (507, 40514), (611, 33618), (862, 23829), (1014, 20257), (1222, 16809), (1293, 15886), (1833, 11206), (2586, 7943), (3666, 5603)]