19656105

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 37428480

約数和(自身を除く): 17772375

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 49, 105, 141, 147, 235, 245, 329, 569, 705, 735, 987, 1645, 1707, 2303, 2845, 3983, 4935, 6909, 8535, 11515, 11949, 19915, 26743, 27881, 34545, 59745, 80229, 83643, 133715, 139405, 187201, 401145, 418215, 561603, 936005, 1310407, 2808015, 3931221, 6552035, 19656105]

約数ペア:

[(1, 19656105), (3, 6552035), (5, 3931221), (7, 2808015), (15, 1310407), (21, 936005), (35, 561603), (47, 418215), (49, 401145), (105, 187201), (141, 139405), (147, 133715), (235, 83643), (245, 80229), (329, 59745), (569, 34545), (705, 27881), (735, 26743), (987, 19915), (1645, 11949), (1707, 11515), (2303, 8535), (2845, 6909), (3983, 4935)]