20463345

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{389}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 40884480

約数和(自身を除く): 20421135

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 167, 315, 389, 501, 835, 1167, 1169, 1503, 1945, 2505, 2723, 3501, 3507, 5835, 5845, 7515, 8169, 10521, 13615, 17505, 17535, 24507, 40845, 52605, 64963, 122535, 194889, 324815, 454741, 584667, 974445, 1364223, 2273705, 2923335, 4092669, 6821115, 20463345]

約数ペア:

[(1, 20463345), (3, 6821115), (5, 4092669), (7, 2923335), (9, 2273705), (15, 1364223), (21, 974445), (35, 584667), (45, 454741), (63, 324815), (105, 194889), (167, 122535), (315, 64963), (389, 52605), (501, 40845), (835, 24507), (1167, 17535), (1169, 17505), (1503, 13615), (1945, 10521), (2505, 8169), (2723, 7515), (3501, 5845), (3507, 5835)]