16989970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{719}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 15669230

約数列:

[1, 2, 5, 10, 17, 34, 85, 139, 170, 278, 695, 719, 1390, 1438, 2363, 3595, 4726, 7190, 11815, 12223, 23630, 24446, 61115, 99941, 122230, 199882, 499705, 999410, 1698997, 3397994, 8494985, 16989970]

約数ペア:

[(1, 16989970), (2, 8494985), (5, 3397994), (10, 1698997), (17, 999410), (34, 499705), (85, 199882), (139, 122230), (170, 99941), (278, 61115), (695, 24446), (719, 23630), (1390, 12223), (1438, 11815), (2363, 7190), (3595, 4726)]