20899687515

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{3209}}^1\times {\mathrm{8861}}^1$

素因数の和:12092

約数の個数: 48

約数和(自身を含む): 38915523360

約数和(自身を除く): 18015835845

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 3209, 8861, 9627, 16045, 22463, 26583, 44305, 48135, 62027, 67389, 112315, 132915, 157241, 186081, 310135, 336945, 434189, 471723, 786205, 930405, 1302567, 2170945, 2358615, 6512835, 28434949, 85304847, 142174745, 199044643, 426524235, 597133929, 995223215, 1393312501, 2985669645, 4179937503, 6966562505, 20899687515]

約数ペア:

[(1, 20899687515), (3, 6966562505), (5, 4179937503), (7, 2985669645), (15, 1393312501), (21, 995223215), (35, 597133929), (49, 426524235), (105, 199044643), (147, 142174745), (245, 85304847), (735, 28434949), (3209, 6512835), (8861, 2358615), (9627, 2170945), (16045, 1302567), (22463, 930405), (26583, 786205), (44305, 471723), (48135, 434189), (62027, 336945), (67389, 310135), (112315, 186081), (132915, 157241)]