28772541

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7487}}^1$

素因数の和:7561

約数の個数: 24

約数和(自身を含む): 48282624

約数和(自身を除く): 19510083

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 7487, 22461, 52409, 67383, 157227, 456707, 471681, 1370121, 3196949, 4110363, 9590847, 28772541]

約数ペア:

[(1, 28772541), (3, 9590847), (7, 4110363), (9, 3196949), (21, 1370121), (61, 471681), (63, 456707), (183, 157227), (427, 67383), (549, 52409), (1281, 22461), (3843, 7487)]