21250748

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{593}}^1$

素因数の和:662

約数の個数: 36

約数和(自身を含む): 40848192

約数和(自身を除く): 19597444

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 289, 527, 578, 593, 1054, 1156, 1186, 2108, 2372, 8959, 10081, 17918, 18383, 20162, 35836, 36766, 40324, 73532, 171377, 312511, 342754, 625022, 685508, 1250044, 5312687, 10625374, 21250748]

約数ペア:

[(1, 21250748), (2, 10625374), (4, 5312687), (17, 1250044), (31, 685508), (34, 625022), (62, 342754), (68, 312511), (124, 171377), (289, 73532), (527, 40324), (578, 36766), (593, 35836), (1054, 20162), (1156, 18383), (1186, 17918), (2108, 10081), (2372, 8959)]