28308147

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 20352333

約数列:

[1, 3, 7, 21, 23, 29, 43, 47, 69, 87, 129, 141, 161, 203, 301, 329, 483, 609, 667, 903, 987, 989, 1081, 1247, 1363, 2001, 2021, 2967, 3243, 3741, 4089, 4669, 6063, 6923, 7567, 8729, 9541, 14007, 14147, 20769, 22701, 26187, 28623, 28681, 31349, 42441, 46483, 58609, 86043, 94047, 139449, 175827, 200767, 219443, 325381, 410263, 602301, 658329, 976143, 1230789, 1348007, 4044021, 9436049, 28308147]

約数ペア:

[(1, 28308147), (3, 9436049), (7, 4044021), (21, 1348007), (23, 1230789), (29, 976143), (43, 658329), (47, 602301), (69, 410263), (87, 325381), (129, 219443), (141, 200767), (161, 175827), (203, 139449), (301, 94047), (329, 86043), (483, 58609), (609, 46483), (667, 42441), (903, 31349), (987, 28681), (989, 28623), (1081, 26187), (1247, 22701), (1363, 20769), (2001, 14147), (2021, 14007), (2967, 9541), (3243, 8729), (3741, 7567), (4089, 6923), (4669, 6063)]