21770028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{86389}}^1$

素因数の和:86406

約数の個数: 36

約数和(自身を含む): 62891920

約数和(自身を除く): 41121892

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 86389, 172778, 259167, 345556, 518334, 604723, 777501, 1036668, 1209446, 1555002, 1814169, 2418892, 3110004, 3628338, 5442507, 7256676, 10885014, 21770028]

約数ペア:

[(1, 21770028), (2, 10885014), (3, 7256676), (4, 5442507), (6, 3628338), (7, 3110004), (9, 2418892), (12, 1814169), (14, 1555002), (18, 1209446), (21, 1036668), (28, 777501), (36, 604723), (42, 518334), (63, 345556), (84, 259167), (126, 172778), (252, 86389)]