408072021

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{15583}}^1$

素因数の和:15665

約数の個数: 32

約数和(自身を含む): 658268160

約数和(自身を除く): 250196139

約数列:

[1, 3, 7, 21, 29, 43, 87, 129, 203, 301, 609, 903, 1247, 3741, 8729, 15583, 26187, 46749, 109081, 327243, 451907, 670069, 1355721, 2010207, 3163349, 4690483, 9490047, 14071449, 19432001, 58296003, 136024007, 408072021]

約数ペア:

[(1, 408072021), (3, 136024007), (7, 58296003), (21, 19432001), (29, 14071449), (43, 9490047), (87, 4690483), (129, 3163349), (203, 2010207), (301, 1355721), (609, 670069), (903, 451907), (1247, 327243), (3741, 109081), (8729, 46749), (15583, 26187)]