28108731

素因数分解:

$3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{3049}}^1$

素因数の和:3498

約数の個数: 16

約数和(自身を含む): 42944000

約数和(自身を除く): 14835269

約数列:

[1, 3, 7, 21, 439, 1317, 3049, 3073, 9147, 9219, 21343, 64029, 1338511, 4015533, 9369577, 28108731]

約数ペア:

[(1, 28108731), (3, 9369577), (7, 4015533), (21, 1338511), (439, 64029), (1317, 21343), (3049, 9219), (3073, 9147)]