12120423

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 19991040

約数和(自身を除く): 7870617

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 821, 2109, 2463, 4921, 5747, 14763, 15599, 17241, 30377, 46797, 91131, 109193, 212639, 327579, 577163, 637917, 1731489, 4040141, 12120423]

約数ペア:

[(1, 12120423), (3, 4040141), (7, 1731489), (19, 637917), (21, 577163), (37, 327579), (57, 212639), (111, 109193), (133, 91131), (259, 46797), (399, 30377), (703, 17241), (777, 15599), (821, 14763), (2109, 5747), (2463, 4921)]