287487333

素因数分解:

$3^3\times 7^1\times {\mathrm{647}}^1\times {\mathrm{2351}}^1$

素因数の和:3014

約数の個数: 32

約数和(自身を含む): 487710720

約数和(自身を除く): 200223387

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 647, 1941, 2351, 4529, 5823, 7053, 13587, 16457, 17469, 21159, 40761, 49371, 63477, 122283, 148113, 444339, 1521097, 4563291, 10647679, 13689873, 31943037, 41069619, 95829111, 287487333]

約数ペア:

[(1, 287487333), (3, 95829111), (7, 41069619), (9, 31943037), (21, 13689873), (27, 10647679), (63, 4563291), (189, 1521097), (647, 444339), (1941, 148113), (2351, 122283), (4529, 63477), (5823, 49371), (7053, 40761), (13587, 21159), (16457, 17469)]