19911165

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{691}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 34079616

約数和(自身を除く): 14168451

約数列:

[1, 3, 5, 15, 17, 51, 85, 113, 255, 339, 565, 691, 1695, 1921, 2073, 3455, 5763, 9605, 10365, 11747, 28815, 35241, 58735, 78083, 176205, 234249, 390415, 1171245, 1327411, 3982233, 6637055, 19911165]

約数ペア:

[(1, 19911165), (3, 6637055), (5, 3982233), (15, 1327411), (17, 1171245), (51, 390415), (85, 234249), (113, 176205), (255, 78083), (339, 58735), (565, 35241), (691, 28815), (1695, 11747), (1921, 10365), (2073, 9605), (3455, 5763)]