19545855

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:189

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 18470145

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 131, 145, 147, 203, 245, 343, 393, 435, 609, 655, 735, 917, 1015, 1029, 1421, 1715, 1965, 2751, 3045, 3799, 4263, 4585, 5145, 6419, 7105, 9947, 11397, 13755, 18995, 19257, 21315, 26593, 29841, 32095, 44933, 49735, 56985, 79779, 96285, 132965, 134799, 149205, 186151, 224665, 398895, 558453, 673995, 930755, 1303057, 2792265, 3909171, 6515285, 19545855]

約数ペア:

[(1, 19545855), (3, 6515285), (5, 3909171), (7, 2792265), (15, 1303057), (21, 930755), (29, 673995), (35, 558453), (49, 398895), (87, 224665), (105, 186151), (131, 149205), (145, 134799), (147, 132965), (203, 96285), (245, 79779), (343, 56985), (393, 49735), (435, 44933), (609, 32095), (655, 29841), (735, 26593), (917, 21315), (1015, 19257), (1029, 18995), (1421, 13755), (1715, 11397), (1965, 9947), (2751, 7105), (3045, 6419), (3799, 5145), (4263, 4585)]