638386273

素因数分解:

$7^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1\times {\mathrm{1289}}^1$

素因数の和:1944

約数の個数: 16

約数和(自身を含む): 736848000

約数和(自身を除く): 98461727

約数列:

[1, 7, 139, 509, 973, 1289, 3563, 9023, 70751, 179171, 495257, 656101, 1254197, 4592707, 91198039, 638386273]

約数ペア:

[(1, 638386273), (7, 91198039), (139, 4592707), (509, 1254197), (973, 656101), (1289, 495257), (3563, 179171), (9023, 70751)]