28919751

素因数分解:

$3^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{1741}}^1$

素因数の和:1871

約数の個数: 24

約数和(自身を含む): 45278064

約数和(自身を除く): 16358313

約数列:

[1, 3, 7, 21, 49, 113, 147, 339, 791, 1741, 2373, 5223, 5537, 12187, 16611, 36561, 85309, 196733, 255927, 590199, 1377131, 4131393, 9639917, 28919751]

約数ペア:

[(1, 28919751), (3, 9639917), (7, 4131393), (21, 1377131), (49, 590199), (113, 255927), (147, 196733), (339, 85309), (791, 36561), (1741, 16611), (2373, 12187), (5223, 5537)]