19109895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 37545984

約数和(自身を除く): 18436089

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 41, 69, 105, 115, 123, 161, 193, 205, 287, 345, 483, 579, 615, 805, 861, 943, 965, 1351, 1435, 2415, 2829, 2895, 4053, 4305, 4439, 4715, 6601, 6755, 7913, 13317, 14145, 19803, 20265, 22195, 23739, 31073, 33005, 39565, 55391, 66585, 93219, 99015, 118695, 155365, 166173, 181999, 276955, 466095, 545997, 830865, 909995, 1273993, 2729985, 3821979, 6369965, 19109895]

約数ペア:

[(1, 19109895), (3, 6369965), (5, 3821979), (7, 2729985), (15, 1273993), (21, 909995), (23, 830865), (35, 545997), (41, 466095), (69, 276955), (105, 181999), (115, 166173), (123, 155365), (161, 118695), (193, 99015), (205, 93219), (287, 66585), (345, 55391), (483, 39565), (579, 33005), (615, 31073), (805, 23739), (861, 22195), (943, 20265), (965, 19803), (1351, 14145), (1435, 13317), (2415, 7913), (2829, 6755), (2895, 6601), (4053, 4715), (4305, 4439)]