28113939

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7829}}^1$

素因数の和:7864

約数の個数: 32

約数和(自身を含む): 50112000

約数和(自身を除く): 21998061

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 7829, 23487, 54803, 70461, 148751, 164409, 211383, 446253, 493227, 1041257, 1338759, 1479681, 3123771, 4016277, 9371313, 28113939]

約数ペア:

[(1, 28113939), (3, 9371313), (7, 4016277), (9, 3123771), (19, 1479681), (21, 1338759), (27, 1041257), (57, 493227), (63, 446253), (133, 211383), (171, 164409), (189, 148751), (399, 70461), (513, 54803), (1197, 23487), (3591, 7829)]