28145859

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3067}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 47124480

約数和(自身を除く): 18978621

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 133, 161, 399, 437, 483, 1311, 3059, 3067, 9177, 9201, 21469, 58273, 64407, 70541, 174819, 211623, 407911, 493787, 1223733, 1340279, 1481361, 4020837, 9381953, 28145859]

約数ペア:

[(1, 28145859), (3, 9381953), (7, 4020837), (19, 1481361), (21, 1340279), (23, 1223733), (57, 493787), (69, 407911), (133, 211623), (161, 174819), (399, 70541), (437, 64407), (483, 58273), (1311, 21469), (3059, 9201), (3067, 9177)]