19998252

素因数分解:

$2^2\times 3^4\times {\mathrm{61723}}^1$

素因数の和:61739

約数の個数: 30

約数和(自身を含む): 52280228

約数和(自身を除く): 32281976

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 61723, 123446, 185169, 246892, 370338, 555507, 740676, 1111014, 1666521, 2222028, 3333042, 4999563, 6666084, 9999126, 19998252]

約数ペア:

[(1, 19998252), (2, 9999126), (3, 6666084), (4, 4999563), (6, 3333042), (9, 2222028), (12, 1666521), (18, 1111014), (27, 740676), (36, 555507), (54, 370338), (81, 246892), (108, 185169), (162, 123446), (324, 61723)]