19388327

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:826

約数の個数: 16

約数和(自身を含む): 23112000

約数和(自身を除く): 3723673

約数列:

[1, 7, 29, 149, 203, 641, 1043, 4321, 4487, 18589, 30247, 95509, 130123, 668563, 2769761, 19388327]

約数ペア:

[(1, 19388327), (7, 2769761), (29, 668563), (149, 130123), (203, 95509), (641, 30247), (1043, 18589), (4321, 4487)]