223031487

素因数分解:

$3^1\times 7^2\times {\mathrm{991}}^1\times {\mathrm{1531}}^1$

素因数の和:2539

約数の個数: 24

約数和(自身を含む): 346501632

約数和(自身を除く): 123470145

約数列:

[1, 3, 7, 21, 49, 147, 991, 1531, 2973, 4593, 6937, 10717, 20811, 32151, 48559, 75019, 145677, 225057, 1517221, 4551663, 10620547, 31861641, 74343829, 223031487]

約数ペア:

[(1, 223031487), (3, 74343829), (7, 31861641), (21, 10620547), (49, 4551663), (147, 1517221), (991, 225057), (1531, 145677), (2973, 75019), (4593, 48559), (6937, 32151), (10717, 20811)]