21100095

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{983}}^1$

素因数の和:1053

約数の個数: 40

約数和(自身を含む): 38576736

約数和(自身を除く): 17476641

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 983, 1431, 2385, 2949, 4293, 4915, 7155, 8847, 14745, 21465, 26541, 44235, 52099, 79623, 132705, 156297, 260495, 398115, 468891, 781485, 1406673, 2344455, 4220019, 7033365, 21100095]

約数ペア:

[(1, 21100095), (3, 7033365), (5, 4220019), (9, 2344455), (15, 1406673), (27, 781485), (45, 468891), (53, 398115), (81, 260495), (135, 156297), (159, 132705), (265, 79623), (405, 52099), (477, 44235), (795, 26541), (983, 21465), (1431, 14745), (2385, 8847), (2949, 7155), (4293, 4915)]