21464336

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:168

約数の個数: 80

約数和(自身を含む): 47568384

約数和(自身を除く): 26104048

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 47, 68, 73, 92, 94, 136, 146, 184, 188, 272, 292, 368, 376, 391, 584, 752, 782, 799, 1081, 1168, 1241, 1564, 1598, 1679, 2162, 2482, 3128, 3196, 3358, 3431, 4324, 4964, 6256, 6392, 6716, 6862, 8648, 9928, 12784, 13432, 13724, 17296, 18377, 19856, 26864, 27448, 28543, 36754, 54896, 57086, 58327, 73508, 78913, 114172, 116654, 147016, 157826, 228344, 233308, 294032, 315652, 456688, 466616, 631304, 933232, 1262608, 1341521, 2683042, 5366084, 10732168, 21464336]

約数ペア:

[(1, 21464336), (2, 10732168), (4, 5366084), (8, 2683042), (16, 1341521), (17, 1262608), (23, 933232), (34, 631304), (46, 466616), (47, 456688), (68, 315652), (73, 294032), (92, 233308), (94, 228344), (136, 157826), (146, 147016), (184, 116654), (188, 114172), (272, 78913), (292, 73508), (368, 58327), (376, 57086), (391, 54896), (584, 36754), (752, 28543), (782, 27448), (799, 26864), (1081, 19856), (1168, 18377), (1241, 17296), (1564, 13724), (1598, 13432), (1679, 12784), (2162, 9928), (2482, 8648), (3128, 6862), (3196, 6716), (3358, 6392), (3431, 6256), (4324, 4964)]