21147952

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6091}}^1$

素因数の和:6137

約数の個数: 40

約数和(自身を含む): 48346112

約数和(自身を除く): 27198160

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6091, 12182, 24364, 42637, 48728, 85274, 97456, 170548, 188821, 341096, 377642, 682192, 755284, 1321747, 1510568, 2643494, 3021136, 5286988, 10573976, 21147952]

約数ペア:

[(1, 21147952), (2, 10573976), (4, 5286988), (7, 3021136), (8, 2643494), (14, 1510568), (16, 1321747), (28, 755284), (31, 682192), (56, 377642), (62, 341096), (112, 188821), (124, 170548), (217, 97456), (248, 85274), (434, 48728), (496, 42637), (868, 24364), (1736, 12182), (3472, 6091)]