21498724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3793}}^1$

素因数の和:3919

約数の個数: 24

約数和(自身を含む): 40899320

約数和(自身を除く): 19400596

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 1417, 2834, 3793, 5668, 7586, 15172, 49309, 98618, 197236, 413437, 826874, 1653748, 5374681, 10749362, 21498724]

約数ペア:

[(1, 21498724), (2, 10749362), (4, 5374681), (13, 1653748), (26, 826874), (52, 413437), (109, 197236), (218, 98618), (436, 49309), (1417, 15172), (2834, 7586), (3793, 5668)]