278322213

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{4007}}^1$

素因数の和:4173

約数の個数: 24

約数和(自身を含む): 404872128

約数和(自身を除く): 126549915

約数列:

[1, 3, 13, 39, 137, 169, 411, 507, 1781, 4007, 5343, 12021, 23153, 52091, 69459, 156273, 548959, 677183, 1646877, 2031549, 7136467, 21409401, 92774071, 278322213]

約数ペア:

[(1, 278322213), (3, 92774071), (13, 21409401), (39, 7136467), (137, 2031549), (169, 1646877), (411, 677183), (507, 548959), (1781, 156273), (4007, 69459), (5343, 52091), (12021, 23153)]