20893977

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:295

約数の個数: 48

約数和(自身を含む): 35428800

約数和(自身を除く): 14534823

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 169, 171, 241, 247, 351, 507, 513, 723, 741, 1521, 2169, 2223, 3133, 3211, 4563, 4579, 6507, 6669, 9399, 9633, 13737, 28197, 28899, 40729, 41211, 59527, 84591, 86697, 122187, 123633, 178581, 366561, 535743, 773851, 1099683, 1607229, 2321553, 6964659, 20893977]

約数ペア:

[(1, 20893977), (3, 6964659), (9, 2321553), (13, 1607229), (19, 1099683), (27, 773851), (39, 535743), (57, 366561), (117, 178581), (169, 123633), (171, 122187), (241, 86697), (247, 84591), (351, 59527), (507, 41211), (513, 40729), (723, 28899), (741, 28197), (1521, 13737), (2169, 9633), (2223, 9399), (3133, 6669), (3211, 6507), (4563, 4579)]