19690047

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 33266688

約数和(自身を除く): 13576641

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 81, 117, 207, 243, 271, 299, 351, 621, 813, 897, 1053, 1863, 2439, 2691, 3159, 3523, 5589, 6233, 7317, 8073, 10569, 18699, 21951, 24219, 31707, 56097, 65853, 72657, 81029, 95121, 168291, 243087, 285363, 504873, 729261, 856089, 1514619, 2187783, 6563349, 19690047]

約数ペア:

[(1, 19690047), (3, 6563349), (9, 2187783), (13, 1514619), (23, 856089), (27, 729261), (39, 504873), (69, 285363), (81, 243087), (117, 168291), (207, 95121), (243, 81029), (271, 72657), (299, 65853), (351, 56097), (621, 31707), (813, 24219), (897, 21951), (1053, 18699), (1863, 10569), (2439, 8073), (2691, 7317), (3159, 6233), (3523, 5589)]