21051384

素因数分解:

$2^3\times 3^1\times {\mathrm{257}}^1\times {\mathrm{3413}}^1$

素因数の和:3679

約数の個数: 32

約数和(自身を含む): 52848720

約数和(自身を除く): 31797336

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 257, 514, 771, 1028, 1542, 2056, 3084, 3413, 6168, 6826, 10239, 13652, 20478, 27304, 40956, 81912, 877141, 1754282, 2631423, 3508564, 5262846, 7017128, 10525692, 21051384]

約数ペア:

[(1, 21051384), (2, 10525692), (3, 7017128), (4, 5262846), (6, 3508564), (8, 2631423), (12, 1754282), (24, 877141), (257, 81912), (514, 40956), (771, 27304), (1028, 20478), (1542, 13652), (2056, 10239), (3084, 6826), (3413, 6168)]