18997935

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1187}}^1$

素因数の和:1303

約数の個数: 32

約数和(自身を含む): 33530112

約数和(自身を除く): 14532177

約数列:

[1, 3, 5, 11, 15, 33, 55, 97, 165, 291, 485, 1067, 1187, 1455, 3201, 3561, 5335, 5935, 13057, 16005, 17805, 39171, 65285, 115139, 195855, 345417, 575695, 1266529, 1727085, 3799587, 6332645, 18997935]

約数ペア:

[(1, 18997935), (3, 6332645), (5, 3799587), (11, 1727085), (15, 1266529), (33, 575695), (55, 345417), (97, 195855), (165, 115139), (291, 65285), (485, 39171), (1067, 17805), (1187, 16005), (1455, 13057), (3201, 5935), (3561, 5335)]