21090528

素因数分解:

$2^5\times 3^2\times {\mathrm{67}}^1\times {\mathrm{1093}}^1$

素因数の和:1176

約数の個数: 72

約数和(自身を含む): 60927048

約数和(自身を除く): 39836520

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 67, 72, 96, 134, 144, 201, 268, 288, 402, 536, 603, 804, 1072, 1093, 1206, 1608, 2144, 2186, 2412, 3216, 3279, 4372, 4824, 6432, 6558, 8744, 9648, 9837, 13116, 17488, 19296, 19674, 26232, 34976, 39348, 52464, 73231, 78696, 104928, 146462, 157392, 219693, 292924, 314784, 439386, 585848, 659079, 878772, 1171696, 1318158, 1757544, 2343392, 2636316, 3515088, 5272632, 7030176, 10545264, 21090528]

約数ペア:

[(1, 21090528), (2, 10545264), (3, 7030176), (4, 5272632), (6, 3515088), (8, 2636316), (9, 2343392), (12, 1757544), (16, 1318158), (18, 1171696), (24, 878772), (32, 659079), (36, 585848), (48, 439386), (67, 314784), (72, 292924), (96, 219693), (134, 157392), (144, 146462), (201, 104928), (268, 78696), (288, 73231), (402, 52464), (536, 39348), (603, 34976), (804, 26232), (1072, 19674), (1093, 19296), (1206, 17488), (1608, 13116), (2144, 9837), (2186, 9648), (2412, 8744), (3216, 6558), (3279, 6432), (4372, 4824)]