21090789825

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{269617}}^1$

素因数の和:269786

約数の個数: 48

約数和(自身を含む): 40119158400

約数和(自身を除く): 19028368575

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 149, 175, 447, 525, 745, 1043, 2235, 3129, 3725, 5215, 11175, 15645, 26075, 78225, 269617, 808851, 1348085, 1887319, 4044255, 5661957, 6740425, 9436595, 20221275, 28309785, 40172933, 47182975, 120518799, 141548925, 200864665, 281210531, 602593995, 843631593, 1004323325, 1406052655, 3012969975, 4218157965, 7030263275, 21090789825]

約数ペア:

[(1, 21090789825), (3, 7030263275), (5, 4218157965), (7, 3012969975), (15, 1406052655), (21, 1004323325), (25, 843631593), (35, 602593995), (75, 281210531), (105, 200864665), (149, 141548925), (175, 120518799), (447, 47182975), (525, 40172933), (745, 28309785), (1043, 20221275), (2235, 9436595), (3129, 6740425), (3725, 5661957), (5215, 4044255), (11175, 1887319), (15645, 1348085), (26075, 808851), (78225, 269617)]