127931209

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{457}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 155069640

約数和(自身を除く): 27138431

約数列:

[1, 7, 29, 49, 197, 203, 457, 1379, 1421, 3199, 5713, 9653, 13253, 22393, 39991, 90029, 92771, 279937, 630203, 649397, 2610841, 4411421, 18275887, 127931209]

約数ペア:

[(1, 127931209), (7, 18275887), (29, 4411421), (49, 2610841), (197, 649397), (203, 630203), (457, 279937), (1379, 92771), (1421, 90029), (3199, 39991), (5713, 22393), (9653, 13253)]