81541509

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{2137}}^1$

素因数の和:2249

約数の個数: 32

約数和(自身を含む): 131358720

約数和(自身を除く): 49817211

約数列:

[1, 3, 7, 21, 23, 69, 79, 161, 237, 483, 553, 1659, 1817, 2137, 5451, 6411, 12719, 14959, 38157, 44877, 49151, 147453, 168823, 344057, 506469, 1032171, 1181761, 3545283, 3882929, 11648787, 27180503, 81541509]

約数ペア:

[(1, 81541509), (3, 27180503), (7, 11648787), (21, 3882929), (23, 3545283), (69, 1181761), (79, 1032171), (161, 506469), (237, 344057), (483, 168823), (553, 147453), (1659, 49151), (1817, 44877), (2137, 38157), (5451, 14959), (6411, 12719)]