21534120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 72806400

約数和(自身を除く): 51272280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 127, 135, 157, 180, 216, 254, 270, 314, 360, 381, 471, 508, 540, 628, 635, 762, 785, 942, 1016, 1080, 1143, 1256, 1270, 1413, 1524, 1570, 1884, 1905, 2286, 2355, 2540, 2826, 3048, 3140, 3429, 3768, 3810, 4239, 4572, 4710, 5080, 5652, 5715, 6280, 6858, 7065, 7620, 8478, 9144, 9420, 11304, 11430, 13716, 14130, 15240, 16956, 17145, 18840, 19939, 21195, 22860, 27432, 28260, 33912, 34290, 39878, 42390, 45720, 56520, 59817, 68580, 79756, 84780, 99695, 119634, 137160, 159512, 169560, 179451, 199390, 239268, 299085, 358902, 398780, 478536, 538353, 598170, 717804, 797560, 897255, 1076706, 1196340, 1435608, 1794510, 2153412, 2392680, 2691765, 3589020, 4306824, 5383530, 7178040, 10767060, 21534120]

約数ペア:

[(1, 21534120), (2, 10767060), (3, 7178040), (4, 5383530), (5, 4306824), (6, 3589020), (8, 2691765), (9, 2392680), (10, 2153412), (12, 1794510), (15, 1435608), (18, 1196340), (20, 1076706), (24, 897255), (27, 797560), (30, 717804), (36, 598170), (40, 538353), (45, 478536), (54, 398780), (60, 358902), (72, 299085), (90, 239268), (108, 199390), (120, 179451), (127, 169560), (135, 159512), (157, 137160), (180, 119634), (216, 99695), (254, 84780), (270, 79756), (314, 68580), (360, 59817), (381, 56520), (471, 45720), (508, 42390), (540, 39878), (628, 34290), (635, 33912), (762, 28260), (785, 27432), (942, 22860), (1016, 21195), (1080, 19939), (1143, 18840), (1256, 17145), (1270, 16956), (1413, 15240), (1524, 14130), (1570, 13716), (1884, 11430), (1905, 11304), (2286, 9420), (2355, 9144), (2540, 8478), (2826, 7620), (3048, 7065), (3140, 6858), (3429, 6280), (3768, 5715), (3810, 5652), (4239, 5080), (4572, 4710)]