21471360

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 128

約数和(自身を含む): 70061760

約数和(自身を除く): 48590400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 106, 120, 128, 159, 160, 192, 211, 212, 240, 265, 318, 320, 384, 422, 424, 480, 530, 633, 636, 640, 795, 844, 848, 960, 1055, 1060, 1266, 1272, 1590, 1688, 1696, 1920, 2110, 2120, 2532, 2544, 3165, 3180, 3376, 3392, 4220, 4240, 5064, 5088, 6330, 6360, 6752, 6784, 8440, 8480, 10128, 10176, 11183, 12660, 12720, 13504, 16880, 16960, 20256, 20352, 22366, 25320, 25440, 27008, 33549, 33760, 33920, 40512, 44732, 50640, 50880, 55915, 67098, 67520, 81024, 89464, 101280, 101760, 111830, 134196, 135040, 167745, 178928, 202560, 223660, 268392, 335490, 357856, 405120, 447320, 536784, 670980, 715712, 894640, 1073568, 1341960, 1431424, 1789280, 2147136, 2683920, 3578560, 4294272, 5367840, 7157120, 10735680, 21471360]

約数ペア:

[(1, 21471360), (2, 10735680), (3, 7157120), (4, 5367840), (5, 4294272), (6, 3578560), (8, 2683920), (10, 2147136), (12, 1789280), (15, 1431424), (16, 1341960), (20, 1073568), (24, 894640), (30, 715712), (32, 670980), (40, 536784), (48, 447320), (53, 405120), (60, 357856), (64, 335490), (80, 268392), (96, 223660), (106, 202560), (120, 178928), (128, 167745), (159, 135040), (160, 134196), (192, 111830), (211, 101760), (212, 101280), (240, 89464), (265, 81024), (318, 67520), (320, 67098), (384, 55915), (422, 50880), (424, 50640), (480, 44732), (530, 40512), (633, 33920), (636, 33760), (640, 33549), (795, 27008), (844, 25440), (848, 25320), (960, 22366), (1055, 20352), (1060, 20256), (1266, 16960), (1272, 16880), (1590, 13504), (1688, 12720), (1696, 12660), (1920, 11183), (2110, 10176), (2120, 10128), (2532, 8480), (2544, 8440), (3165, 6784), (3180, 6752), (3376, 6360), (3392, 6330), (4220, 5088), (4240, 5064)]