21109590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2969}}^1$

素因数の和:3061

約数の個数: 48

約数和(自身を含む): 55598400

約数和(自身を除く): 34488810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 79, 90, 158, 237, 395, 474, 711, 790, 1185, 1422, 2370, 2969, 3555, 5938, 7110, 8907, 14845, 17814, 26721, 29690, 44535, 53442, 89070, 133605, 234551, 267210, 469102, 703653, 1172755, 1407306, 2110959, 2345510, 3518265, 4221918, 7036530, 10554795, 21109590]

約数ペア:

[(1, 21109590), (2, 10554795), (3, 7036530), (5, 4221918), (6, 3518265), (9, 2345510), (10, 2110959), (15, 1407306), (18, 1172755), (30, 703653), (45, 469102), (79, 267210), (90, 234551), (158, 133605), (237, 89070), (395, 53442), (474, 44535), (711, 29690), (790, 26721), (1185, 17814), (1422, 14845), (2370, 8907), (2969, 7110), (3555, 5938)]