21490252078

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1\times {\mathrm{337}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 35155980288

約数和(自身を除く): 13665728210

約数列:

[1, 2, 23, 31, 46, 62, 197, 227, 337, 394, 454, 674, 713, 1426, 4531, 5221, 6107, 7037, 7751, 9062, 10442, 10447, 12214, 14074, 15502, 20894, 44719, 66389, 76499, 89438, 132778, 140461, 152998, 161851, 240281, 280922, 323702, 480562, 1028537, 1386289, 1526947, 1759477, 2057074, 2058059, 2371469, 2772578, 3053894, 3518954, 4116118, 4742938, 15070303, 30140606, 31884647, 47335357, 54543787, 63769294, 94670714, 109087574, 346616969, 467179393, 693233938, 934358786, 10745126039, 21490252078]

約数ペア:

[(1, 21490252078), (2, 10745126039), (23, 934358786), (31, 693233938), (46, 467179393), (62, 346616969), (197, 109087574), (227, 94670714), (337, 63769294), (394, 54543787), (454, 47335357), (674, 31884647), (713, 30140606), (1426, 15070303), (4531, 4742938), (5221, 4116118), (6107, 3518954), (7037, 3053894), (7751, 2772578), (9062, 2371469), (10442, 2058059), (10447, 2057074), (12214, 1759477), (14074, 1526947), (15502, 1386289), (20894, 1028537), (44719, 480562), (66389, 323702), (76499, 280922), (89438, 240281), (132778, 161851), (140461, 152998)]