21259056

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 70217728

約数和(自身を除く): 48958672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 31, 39, 42, 48, 52, 56, 62, 78, 84, 91, 93, 104, 112, 124, 156, 157, 168, 182, 186, 208, 217, 248, 273, 312, 314, 336, 364, 372, 403, 434, 471, 496, 546, 624, 628, 651, 728, 744, 806, 868, 942, 1092, 1099, 1209, 1256, 1302, 1456, 1488, 1612, 1736, 1884, 2041, 2184, 2198, 2418, 2512, 2604, 2821, 3224, 3297, 3472, 3768, 4082, 4368, 4396, 4836, 4867, 5208, 5642, 6123, 6448, 6594, 7536, 8164, 8463, 8792, 9672, 9734, 10416, 11284, 12246, 13188, 14287, 14601, 16328, 16926, 17584, 19344, 19468, 22568, 24492, 26376, 28574, 29202, 32656, 33852, 34069, 38936, 42861, 45136, 48984, 52752, 57148, 58404, 63271, 67704, 68138, 77872, 85722, 97968, 102207, 114296, 116808, 126542, 135408, 136276, 171444, 189813, 204414, 228592, 233616, 253084, 272552, 342888, 379626, 408828, 442897, 506168, 545104, 685776, 759252, 817656, 885794, 1012336, 1328691, 1518504, 1635312, 1771588, 2657382, 3037008, 3543176, 5314764, 7086352, 10629528, 21259056]

約数ペア:

[(1, 21259056), (2, 10629528), (3, 7086352), (4, 5314764), (6, 3543176), (7, 3037008), (8, 2657382), (12, 1771588), (13, 1635312), (14, 1518504), (16, 1328691), (21, 1012336), (24, 885794), (26, 817656), (28, 759252), (31, 685776), (39, 545104), (42, 506168), (48, 442897), (52, 408828), (56, 379626), (62, 342888), (78, 272552), (84, 253084), (91, 233616), (93, 228592), (104, 204414), (112, 189813), (124, 171444), (156, 136276), (157, 135408), (168, 126542), (182, 116808), (186, 114296), (208, 102207), (217, 97968), (248, 85722), (273, 77872), (312, 68138), (314, 67704), (336, 63271), (364, 58404), (372, 57148), (403, 52752), (434, 48984), (471, 45136), (496, 42861), (546, 38936), (624, 34069), (628, 33852), (651, 32656), (728, 29202), (744, 28574), (806, 26376), (868, 24492), (942, 22568), (1092, 19468), (1099, 19344), (1209, 17584), (1256, 16926), (1302, 16328), (1456, 14601), (1488, 14287), (1612, 13188), (1736, 12246), (1884, 11284), (2041, 10416), (2184, 9734), (2198, 9672), (2418, 8792), (2512, 8463), (2604, 8164), (2821, 7536), (3224, 6594), (3297, 6448), (3472, 6123), (3768, 5642), (4082, 5208), (4368, 4867), (4396, 4836)]