20139938

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2699}}^1$

素因数の和:2762

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17962462

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 182, 287, 533, 574, 1066, 2699, 3731, 5398, 7462, 18893, 35087, 37786, 70174, 110659, 221318, 245609, 491218, 774613, 1438567, 1549226, 2877134, 10069969, 20139938]

約数ペア:

[(1, 20139938), (2, 10069969), (7, 2877134), (13, 1549226), (14, 1438567), (26, 774613), (41, 491218), (82, 245609), (91, 221318), (182, 110659), (287, 70174), (533, 37786), (574, 35087), (1066, 18893), (2699, 7462), (3731, 5398)]