28642329

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:571

約数の個数: 40

約数和(自身を含む): 46347840

約数和(自身を除く): 17705511

約数列:

[1, 3, 9, 19, 27, 37, 57, 81, 111, 171, 333, 503, 513, 703, 999, 1509, 1539, 2109, 2997, 4527, 6327, 9557, 13581, 18611, 18981, 28671, 40743, 55833, 56943, 86013, 167499, 258039, 353609, 502497, 774117, 1060827, 1507491, 3182481, 9547443, 28642329]

約数ペア:

[(1, 28642329), (3, 9547443), (9, 3182481), (19, 1507491), (27, 1060827), (37, 774117), (57, 502497), (81, 353609), (111, 258039), (171, 167499), (333, 86013), (503, 56943), (513, 55833), (703, 40743), (999, 28671), (1509, 18981), (1539, 18611), (2109, 13581), (2997, 9557), (4527, 6327)]