21164506275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{101399}}^1$

素因数の和:101457

約数の個数: 72

約数和(自身を含む): 40134931200

約数和(自身を除く): 18970424925

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 121, 165, 253, 275, 345, 363, 575, 605, 759, 825, 1265, 1725, 1815, 2783, 3025, 3795, 6325, 8349, 9075, 13915, 18975, 41745, 69575, 101399, 208725, 304197, 506995, 1115389, 1520985, 2332177, 2534975, 3346167, 5576945, 6996531, 7604925, 11660885, 12269279, 16730835, 25653947, 27884725, 34982655, 36807837, 58304425, 61346395, 76961841, 83654175, 128269735, 174913275, 184039185, 282193417, 306731975, 384809205, 641348675, 846580251, 920195925, 1410967085, 1924046025, 4232901255, 7054835425, 21164506275]

約数ペア:

[(1, 21164506275), (3, 7054835425), (5, 4232901255), (11, 1924046025), (15, 1410967085), (23, 920195925), (25, 846580251), (33, 641348675), (55, 384809205), (69, 306731975), (75, 282193417), (115, 184039185), (121, 174913275), (165, 128269735), (253, 83654175), (275, 76961841), (345, 61346395), (363, 58304425), (575, 36807837), (605, 34982655), (759, 27884725), (825, 25653947), (1265, 16730835), (1725, 12269279), (1815, 11660885), (2783, 7604925), (3025, 6996531), (3795, 5576945), (6325, 3346167), (8349, 2534975), (9075, 2332177), (13915, 1520985), (18975, 1115389), (41745, 506995), (69575, 304197), (101399, 208725)]