18817403

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{397}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 21396480

約数和(自身を除く): 2579077

約数列:

[1, 11, 31, 139, 341, 397, 1529, 4309, 4367, 12307, 47399, 55183, 135377, 607013, 1710673, 18817403]

約数ペア:

[(1, 18817403), (11, 1710673), (31, 607013), (139, 135377), (341, 55183), (397, 47399), (1529, 12307), (4309, 4367)]