17729985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{419}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 36126720

約数和(自身を除く): 18396735

約数列:

[1, 3, 5, 7, 13, 15, 21, 31, 35, 39, 65, 91, 93, 105, 155, 195, 217, 273, 403, 419, 455, 465, 651, 1085, 1209, 1257, 1365, 2015, 2095, 2821, 2933, 3255, 5447, 6045, 6285, 8463, 8799, 12989, 14105, 14665, 16341, 27235, 38129, 38967, 42315, 43995, 64945, 81705, 90923, 114387, 168857, 190645, 194835, 272769, 454615, 506571, 571935, 844285, 1181999, 1363845, 2532855, 3545997, 5909995, 17729985]

約数ペア:

[(1, 17729985), (3, 5909995), (5, 3545997), (7, 2532855), (13, 1363845), (15, 1181999), (21, 844285), (31, 571935), (35, 506571), (39, 454615), (65, 272769), (91, 194835), (93, 190645), (105, 168857), (155, 114387), (195, 90923), (217, 81705), (273, 64945), (403, 43995), (419, 42315), (455, 38967), (465, 38129), (651, 27235), (1085, 16341), (1209, 14665), (1257, 14105), (1365, 12989), (2015, 8799), (2095, 8463), (2821, 6285), (2933, 6045), (3255, 5447)]