21385890

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{769}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 57657600

約数和(自身を除く): 36271710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 103, 135, 206, 270, 309, 515, 618, 769, 927, 1030, 1538, 1545, 1854, 2307, 2781, 3090, 3845, 4614, 4635, 5562, 6921, 7690, 9270, 11535, 13842, 13905, 20763, 23070, 27810, 34605, 41526, 69210, 79207, 103815, 158414, 207630, 237621, 396035, 475242, 712863, 792070, 1188105, 1425726, 2138589, 2376210, 3564315, 4277178, 7128630, 10692945, 21385890]

約数ペア:

[(1, 21385890), (2, 10692945), (3, 7128630), (5, 4277178), (6, 3564315), (9, 2376210), (10, 2138589), (15, 1425726), (18, 1188105), (27, 792070), (30, 712863), (45, 475242), (54, 396035), (90, 237621), (103, 207630), (135, 158414), (206, 103815), (270, 79207), (309, 69210), (515, 41526), (618, 34605), (769, 27810), (927, 23070), (1030, 20763), (1538, 13905), (1545, 13842), (1854, 11535), (2307, 9270), (2781, 7690), (3090, 6921), (3845, 5562), (4614, 4635)]