20978334

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2423}}^1$

素因数の和:2481

約数の個数: 48

約数和(自身を含む): 50293152

約数和(自身を除く): 29314818

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2423, 2886, 4329, 4846, 7269, 8658, 14538, 21807, 31499, 43614, 62998, 89651, 94497, 179302, 188994, 268953, 283491, 537906, 566982, 806859, 1165463, 1613718, 2330926, 3496389, 6992778, 10489167, 20978334]

約数ペア:

[(1, 20978334), (2, 10489167), (3, 6992778), (6, 3496389), (9, 2330926), (13, 1613718), (18, 1165463), (26, 806859), (37, 566982), (39, 537906), (74, 283491), (78, 268953), (111, 188994), (117, 179302), (222, 94497), (234, 89651), (333, 62998), (481, 43614), (666, 31499), (962, 21807), (1443, 14538), (2423, 8658), (2886, 7269), (4329, 4846)]