18989085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{659}}^1$

素因数の和:797

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 13514595

約数列:

[1, 3, 5, 15, 17, 51, 85, 113, 255, 339, 565, 659, 1695, 1921, 1977, 3295, 5763, 9605, 9885, 11203, 28815, 33609, 56015, 74467, 168045, 223401, 372335, 1117005, 1265939, 3797817, 6329695, 18989085]

約数ペア:

[(1, 18989085), (3, 6329695), (5, 3797817), (15, 1265939), (17, 1117005), (51, 372335), (85, 223401), (113, 168045), (255, 74467), (339, 56015), (565, 33609), (659, 28815), (1695, 11203), (1921, 9885), (1977, 9605), (3295, 5763)]