21473595

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 96

約数和(自身を含む): 45287424

約数和(自身を除く): 23813829

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 47, 55, 65, 71, 99, 117, 141, 143, 165, 195, 213, 235, 355, 423, 429, 495, 517, 585, 611, 639, 705, 715, 781, 923, 1065, 1287, 1551, 1833, 2115, 2145, 2343, 2585, 2769, 3055, 3195, 3337, 3905, 4615, 4653, 5499, 6435, 6721, 7029, 7755, 8307, 9165, 10011, 10153, 11715, 13845, 16685, 20163, 23265, 27495, 30033, 30459, 33605, 35145, 36707, 41535, 43381, 50055, 50765, 60489, 91377, 100815, 110121, 130143, 150165, 152295, 183535, 216905, 302445, 330363, 390429, 456885, 477191, 550605, 650715, 1431573, 1651815, 1952145, 2385955, 4294719, 7157865, 21473595]

約数ペア:

[(1, 21473595), (3, 7157865), (5, 4294719), (9, 2385955), (11, 1952145), (13, 1651815), (15, 1431573), (33, 650715), (39, 550605), (45, 477191), (47, 456885), (55, 390429), (65, 330363), (71, 302445), (99, 216905), (117, 183535), (141, 152295), (143, 150165), (165, 130143), (195, 110121), (213, 100815), (235, 91377), (355, 60489), (423, 50765), (429, 50055), (495, 43381), (517, 41535), (585, 36707), (611, 35145), (639, 33605), (705, 30459), (715, 30033), (781, 27495), (923, 23265), (1065, 20163), (1287, 16685), (1551, 13845), (1833, 11715), (2115, 10153), (2145, 10011), (2343, 9165), (2585, 8307), (2769, 7755), (3055, 7029), (3195, 6721), (3337, 6435), (3905, 5499), (4615, 4653)]