21578388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138323}}^1$

素因数の和:138343

約数の個数: 24

約数和(自身を含む): 54223008

約数和(自身を除く): 32644620

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138323, 276646, 414969, 553292, 829938, 1659876, 1798199, 3596398, 5394597, 7192796, 10789194, 21578388]

約数ペア:

[(1, 21578388), (2, 10789194), (3, 7192796), (4, 5394597), (6, 3596398), (12, 1798199), (13, 1659876), (26, 829938), (39, 553292), (52, 414969), (78, 276646), (156, 138323)]