19986954

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:911

約数の個数: 48

約数和(自身を含む): 45220032

約数和(自身を除く): 25233078

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 169, 299, 338, 507, 598, 857, 897, 1014, 1714, 1794, 2571, 3887, 5142, 7774, 11141, 11661, 19711, 22282, 23322, 33423, 39422, 59133, 66846, 118266, 144833, 256243, 289666, 434499, 512486, 768729, 868998, 1537458, 3331159, 6662318, 9993477, 19986954]

約数ペア:

[(1, 19986954), (2, 9993477), (3, 6662318), (6, 3331159), (13, 1537458), (23, 868998), (26, 768729), (39, 512486), (46, 434499), (69, 289666), (78, 256243), (138, 144833), (169, 118266), (299, 66846), (338, 59133), (507, 39422), (598, 33423), (857, 23322), (897, 22282), (1014, 19711), (1714, 11661), (1794, 11141), (2571, 7774), (3887, 5142)]