20718504

素因数分解:

$2^3\times 3^4\times {\mathrm{31973}}^1$

素因数の和:31991

約数の個数: 40

約数和(自身を含む): 58032810

約数和(自身を除く): 37314306

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31973, 63946, 95919, 127892, 191838, 255784, 287757, 383676, 575514, 767352, 863271, 1151028, 1726542, 2302056, 2589813, 3453084, 5179626, 6906168, 10359252, 20718504]

約数ペア:

[(1, 20718504), (2, 10359252), (3, 6906168), (4, 5179626), (6, 3453084), (8, 2589813), (9, 2302056), (12, 1726542), (18, 1151028), (24, 863271), (27, 767352), (36, 575514), (54, 383676), (72, 287757), (81, 255784), (108, 191838), (162, 127892), (216, 95919), (324, 63946), (648, 31973)]