21771848

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2797}}^1$

素因数の和:2949

約数の個数: 32

約数和(自身を含む): 47006400

約数和(自身を除く): 25234552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 2797, 3892, 5594, 7784, 11188, 19579, 22376, 39158, 78316, 156632, 388783, 777566, 1555132, 2721481, 3110264, 5442962, 10885924, 21771848]

約数ペア:

[(1, 21771848), (2, 10885924), (4, 5442962), (7, 3110264), (8, 2721481), (14, 1555132), (28, 777566), (56, 388783), (139, 156632), (278, 78316), (556, 39158), (973, 22376), (1112, 19579), (1946, 11188), (2797, 7784), (3892, 5594)]