21510356

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40433}}^1$

素因数の和:40463

約数の個数: 24

約数和(自身を含む): 45286080

約数和(自身を除く): 23775724

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40433, 80866, 161732, 283031, 566062, 768227, 1132124, 1536454, 3072908, 5377589, 10755178, 21510356]

約数ペア:

[(1, 21510356), (2, 10755178), (4, 5377589), (7, 3072908), (14, 1536454), (19, 1132124), (28, 768227), (38, 566062), (76, 283031), (133, 161732), (266, 80866), (532, 40433)]