19738628

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 42881664

約数和(自身を除く): 23143036

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 211, 257, 364, 422, 514, 844, 1028, 1477, 1799, 2743, 2954, 3341, 3598, 5486, 5908, 6682, 7196, 10972, 13364, 19201, 23387, 38402, 46774, 54227, 76804, 93548, 108454, 216908, 379589, 704951, 759178, 1409902, 1518356, 2819804, 4934657, 9869314, 19738628]

約数ペア:

[(1, 19738628), (2, 9869314), (4, 4934657), (7, 2819804), (13, 1518356), (14, 1409902), (26, 759178), (28, 704951), (52, 379589), (91, 216908), (182, 108454), (211, 93548), (257, 76804), (364, 54227), (422, 46774), (514, 38402), (844, 23387), (1028, 19201), (1477, 13364), (1799, 10972), (2743, 7196), (2954, 6682), (3341, 5908), (3598, 5486)]