16971591

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 28957824

約数和(自身を除く): 11986233

約数列:

[1, 3, 7, 13, 21, 39, 49, 83, 91, 107, 147, 249, 273, 321, 581, 637, 749, 1079, 1391, 1743, 1911, 2247, 3237, 4067, 4173, 5243, 7553, 8881, 9737, 12201, 15729, 22659, 26643, 29211, 52871, 62167, 68159, 115453, 158613, 186501, 204477, 346359, 435169, 808171, 1305507, 2424513, 5657197, 16971591]

約数ペア:

[(1, 16971591), (3, 5657197), (7, 2424513), (13, 1305507), (21, 808171), (39, 435169), (49, 346359), (83, 204477), (91, 186501), (107, 158613), (147, 115453), (249, 68159), (273, 62167), (321, 52871), (581, 29211), (637, 26643), (749, 22659), (1079, 15729), (1391, 12201), (1743, 9737), (1911, 8881), (2247, 7553), (3237, 5243), (4067, 4173)]