21174075

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 44441600

約数和(自身を除く): 23267525

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 27, 39, 45, 57, 65, 75, 95, 117, 127, 135, 171, 195, 225, 247, 285, 325, 351, 381, 475, 513, 585, 635, 675, 741, 855, 975, 1143, 1235, 1425, 1651, 1755, 1905, 2223, 2413, 2565, 2925, 3175, 3429, 3705, 4275, 4953, 5715, 6175, 6669, 7239, 8255, 8775, 9525, 11115, 12065, 12825, 14859, 17145, 18525, 21717, 24765, 28575, 31369, 33345, 36195, 41275, 44577, 55575, 60325, 65151, 74295, 85725, 94107, 108585, 123825, 156845, 166725, 180975, 222885, 282321, 325755, 371475, 470535, 542925, 784225, 846963, 1114425, 1411605, 1628775, 2352675, 4234815, 7058025, 21174075]

約数ペア:

[(1, 21174075), (3, 7058025), (5, 4234815), (9, 2352675), (13, 1628775), (15, 1411605), (19, 1114425), (25, 846963), (27, 784225), (39, 542925), (45, 470535), (57, 371475), (65, 325755), (75, 282321), (95, 222885), (117, 180975), (127, 166725), (135, 156845), (171, 123825), (195, 108585), (225, 94107), (247, 85725), (285, 74295), (325, 65151), (351, 60325), (381, 55575), (475, 44577), (513, 41275), (585, 36195), (635, 33345), (675, 31369), (741, 28575), (855, 24765), (975, 21717), (1143, 18525), (1235, 17145), (1425, 14859), (1651, 12825), (1755, 12065), (1905, 11115), (2223, 9525), (2413, 8775), (2565, 8255), (2925, 7239), (3175, 6669), (3429, 6175), (3705, 5715), (4275, 4953)]