21654696

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:994

約数の個数: 64

約数和(自身を含む): 62340480

約数和(自身を除く): 40685784

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 157, 168, 314, 471, 628, 821, 942, 1099, 1256, 1642, 1884, 2198, 2463, 3284, 3297, 3768, 4396, 4926, 5747, 6568, 6594, 8792, 9852, 11494, 13188, 17241, 19704, 22988, 26376, 34482, 45976, 68964, 128897, 137928, 257794, 386691, 515588, 773382, 902279, 1031176, 1546764, 1804558, 2706837, 3093528, 3609116, 5413674, 7218232, 10827348, 21654696]

約数ペア:

[(1, 21654696), (2, 10827348), (3, 7218232), (4, 5413674), (6, 3609116), (7, 3093528), (8, 2706837), (12, 1804558), (14, 1546764), (21, 1031176), (24, 902279), (28, 773382), (42, 515588), (56, 386691), (84, 257794), (157, 137928), (168, 128897), (314, 68964), (471, 45976), (628, 34482), (821, 26376), (942, 22988), (1099, 19704), (1256, 17241), (1642, 13188), (1884, 11494), (2198, 9852), (2463, 8792), (3284, 6594), (3297, 6568), (3768, 5747), (4396, 4926)]