18464985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^2$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 40457664

約数和(自身を除く): 21992679

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 73, 77, 99, 105, 165, 219, 231, 315, 365, 385, 495, 511, 657, 693, 803, 1095, 1155, 1533, 2409, 2555, 3285, 3465, 4015, 4599, 5329, 5621, 7227, 7665, 12045, 15987, 16863, 22995, 26645, 28105, 36135, 37303, 47961, 50589, 58619, 79935, 84315, 111909, 175857, 186515, 239805, 252945, 293095, 335727, 410333, 527571, 559545, 879285, 1230999, 1678635, 2051665, 2637855, 3692997, 6154995, 18464985]

約数ペア:

[(1, 18464985), (3, 6154995), (5, 3692997), (7, 2637855), (9, 2051665), (11, 1678635), (15, 1230999), (21, 879285), (33, 559545), (35, 527571), (45, 410333), (55, 335727), (63, 293095), (73, 252945), (77, 239805), (99, 186515), (105, 175857), (165, 111909), (219, 84315), (231, 79935), (315, 58619), (365, 50589), (385, 47961), (495, 37303), (511, 36135), (657, 28105), (693, 26645), (803, 22995), (1095, 16863), (1155, 15987), (1533, 12045), (2409, 7665), (2555, 7227), (3285, 5621), (3465, 5329), (4015, 4599)]