21175364

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 44706816

約数和(自身を除く): 23531452

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 131, 161, 251, 262, 322, 502, 524, 644, 917, 1004, 1757, 1834, 3013, 3514, 3668, 5773, 6026, 7028, 11546, 12052, 21091, 23092, 32881, 40411, 42182, 65762, 80822, 84364, 131524, 161644, 230167, 460334, 756263, 920668, 1512526, 3025052, 5293841, 10587682, 21175364]

約数ペア:

[(1, 21175364), (2, 10587682), (4, 5293841), (7, 3025052), (14, 1512526), (23, 920668), (28, 756263), (46, 460334), (92, 230167), (131, 161644), (161, 131524), (251, 84364), (262, 80822), (322, 65762), (502, 42182), (524, 40411), (644, 32881), (917, 23092), (1004, 21091), (1757, 12052), (1834, 11546), (3013, 7028), (3514, 6026), (3668, 5773)]