21577740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12401}}^1$

素因数の和:12442

約数の個数: 48

約数和(自身を含む): 62506080

約数和(自身を除く): 40928340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12401, 24802, 37203, 49604, 62005, 74406, 124010, 148812, 186015, 248020, 359629, 372030, 719258, 744060, 1078887, 1438516, 1798145, 2157774, 3596290, 4315548, 5394435, 7192580, 10788870, 21577740]

約数ペア:

[(1, 21577740), (2, 10788870), (3, 7192580), (4, 5394435), (5, 4315548), (6, 3596290), (10, 2157774), (12, 1798145), (15, 1438516), (20, 1078887), (29, 744060), (30, 719258), (58, 372030), (60, 359629), (87, 248020), (116, 186015), (145, 148812), (174, 124010), (290, 74406), (348, 62005), (435, 49604), (580, 37203), (870, 24802), (1740, 12401)]