28669347

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 51068160

約数和(自身を除く): 22398813

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 129, 133, 171, 301, 387, 399, 557, 817, 903, 1197, 1671, 2451, 2709, 3899, 5013, 5719, 7353, 10583, 11697, 17157, 23951, 31749, 35091, 51471, 71853, 74081, 95247, 167657, 215559, 222243, 455069, 502971, 666729, 1365207, 1508913, 3185483, 4095621, 9556449, 28669347]

約数ペア:

[(1, 28669347), (3, 9556449), (7, 4095621), (9, 3185483), (19, 1508913), (21, 1365207), (43, 666729), (57, 502971), (63, 455069), (129, 222243), (133, 215559), (171, 167657), (301, 95247), (387, 74081), (399, 71853), (557, 51471), (817, 35091), (903, 31749), (1197, 23951), (1671, 17157), (2451, 11697), (2709, 10583), (3899, 7353), (5013, 5719)]