28186938

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{739}}^1$

素因数の和:923

約数の個数: 48

約数和(自身を含む): 66262560

約数和(自身を除く): 38075622

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 163, 234, 326, 489, 739, 978, 1467, 1478, 2119, 2217, 2934, 4238, 4434, 6357, 6651, 9607, 12714, 13302, 19071, 19214, 28821, 38142, 57642, 86463, 120457, 172926, 240914, 361371, 722742, 1084113, 1565941, 2168226, 3131882, 4697823, 9395646, 14093469, 28186938]

約数ペア:

[(1, 28186938), (2, 14093469), (3, 9395646), (6, 4697823), (9, 3131882), (13, 2168226), (18, 1565941), (26, 1084113), (39, 722742), (78, 361371), (117, 240914), (163, 172926), (234, 120457), (326, 86463), (489, 57642), (739, 38142), (978, 28821), (1467, 19214), (1478, 19071), (2119, 13302), (2217, 12714), (2934, 9607), (4238, 6651), (4434, 6357)]