21044280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1117}}^1$

素因数の和:1288

約数の個数: 64

約数和(自身を含む): 63591840

約数和(自身を除く): 42547560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1117, 1256, 1570, 1884, 2234, 2355, 3140, 3351, 3768, 4468, 4710, 5585, 6280, 6702, 8936, 9420, 11170, 13404, 16755, 18840, 22340, 26808, 33510, 44680, 67020, 134040, 175369, 350738, 526107, 701476, 876845, 1052214, 1402952, 1753690, 2104428, 2630535, 3507380, 4208856, 5261070, 7014760, 10522140, 21044280]

約数ペア:

[(1, 21044280), (2, 10522140), (3, 7014760), (4, 5261070), (5, 4208856), (6, 3507380), (8, 2630535), (10, 2104428), (12, 1753690), (15, 1402952), (20, 1052214), (24, 876845), (30, 701476), (40, 526107), (60, 350738), (120, 175369), (157, 134040), (314, 67020), (471, 44680), (628, 33510), (785, 26808), (942, 22340), (1117, 18840), (1256, 16755), (1570, 13404), (1884, 11170), (2234, 9420), (2355, 8936), (3140, 6702), (3351, 6280), (3768, 5585), (4468, 4710)]