21062013

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{7541}}^1$

素因数の和:7577

約数の個数: 24

約数和(自身を含む): 34391520

約数和(自身を除く): 13329507

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 7541, 22623, 52787, 143279, 158361, 369509, 429837, 1002953, 1108527, 3008859, 7020671, 21062013]

約数ペア:

[(1, 21062013), (3, 7020671), (7, 3008859), (19, 1108527), (21, 1002953), (49, 429837), (57, 369509), (133, 158361), (147, 143279), (399, 52787), (931, 22623), (2793, 7541)]