81430398

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{646273}}^1$

素因数の和:646288

約数の個数: 24

約数和(自身を含む): 201637488

約数和(自身を除く): 120207090

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 646273, 1292546, 1938819, 3877638, 4523911, 5816457, 9047822, 11632914, 13571733, 27143466, 40715199, 81430398]

約数ペア:

[(1, 81430398), (2, 40715199), (3, 27143466), (6, 13571733), (7, 11632914), (9, 9047822), (14, 5816457), (18, 4523911), (21, 3877638), (42, 1938819), (63, 1292546), (126, 646273)]