21452895

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{967}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 40772160

約数和(自身を除く): 19319265

約数列:

[1, 3, 5, 9, 15, 17, 29, 45, 51, 85, 87, 145, 153, 255, 261, 435, 493, 765, 967, 1305, 1479, 2465, 2901, 4437, 4835, 7395, 8703, 14505, 16439, 22185, 28043, 43515, 49317, 82195, 84129, 140215, 147951, 246585, 252387, 420645, 476731, 739755, 1261935, 1430193, 2383655, 4290579, 7150965, 21452895]

約数ペア:

[(1, 21452895), (3, 7150965), (5, 4290579), (9, 2383655), (15, 1430193), (17, 1261935), (29, 739755), (45, 476731), (51, 420645), (85, 252387), (87, 246585), (145, 147951), (153, 140215), (255, 84129), (261, 82195), (435, 49317), (493, 43515), (765, 28043), (967, 22185), (1305, 16439), (1479, 14505), (2465, 8703), (2901, 7395), (4437, 4835)]