28125123

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{719}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 15420477

約数列:

[1, 3, 13, 17, 39, 51, 59, 177, 221, 663, 719, 767, 1003, 2157, 2301, 3009, 9347, 12223, 13039, 28041, 36669, 39117, 42421, 127263, 158899, 476697, 551473, 721157, 1654419, 2163471, 9375041, 28125123]

約数ペア:

[(1, 28125123), (3, 9375041), (13, 2163471), (17, 1654419), (39, 721157), (51, 551473), (59, 476697), (177, 158899), (221, 127263), (663, 42421), (719, 39117), (767, 36669), (1003, 28041), (2157, 13039), (2301, 12223), (3009, 9347)]