19382385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{181}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 34856640

約数和(自身を除く): 15474255

約数列:

[1, 3, 5, 11, 15, 33, 55, 59, 121, 165, 177, 181, 295, 363, 543, 605, 649, 885, 905, 1815, 1947, 1991, 2715, 3245, 5973, 7139, 9735, 9955, 10679, 21417, 21901, 29865, 32037, 35695, 53395, 65703, 107085, 109505, 117469, 160185, 328515, 352407, 587345, 1292159, 1762035, 3876477, 6460795, 19382385]

約数ペア:

[(1, 19382385), (3, 6460795), (5, 3876477), (11, 1762035), (15, 1292159), (33, 587345), (55, 352407), (59, 328515), (121, 160185), (165, 117469), (177, 109505), (181, 107085), (295, 65703), (363, 53395), (543, 35695), (605, 32037), (649, 29865), (885, 21901), (905, 21417), (1815, 10679), (1947, 9955), (1991, 9735), (2715, 7139), (3245, 5973)]