21055416

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{16553}}^1$

素因数の和:16615

約数の個数: 32

約数和(自身を含む): 53634960

約数和(自身を除く): 32579544

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 16553, 33106, 49659, 66212, 99318, 132424, 198636, 397272, 877309, 1754618, 2631927, 3509236, 5263854, 7018472, 10527708, 21055416]

約数ペア:

[(1, 21055416), (2, 10527708), (3, 7018472), (4, 5263854), (6, 3509236), (8, 2631927), (12, 1754618), (24, 877309), (53, 397272), (106, 198636), (159, 132424), (212, 99318), (318, 66212), (424, 49659), (636, 33106), (1272, 16553)]