21447398

素因数分解:

$2^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2459}}^1$

素因数の和:2564

約数の個数: 24

約数和(自身を含む): 37859400

約数和(自身を除く): 16412002

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 623, 1246, 2459, 4361, 4918, 8722, 17213, 34426, 120491, 218851, 240982, 437702, 1531957, 3063914, 10723699, 21447398]

約数ペア:

[(1, 21447398), (2, 10723699), (7, 3063914), (14, 1531957), (49, 437702), (89, 240982), (98, 218851), (178, 120491), (623, 34426), (1246, 17213), (2459, 8722), (4361, 4918)]