19716723

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:213

約数の個数: 48

約数和(自身を含む): 32940000

約数和(自身を除く): 13223277

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 149, 169, 261, 351, 377, 447, 507, 783, 1131, 1341, 1521, 1937, 3393, 4023, 4321, 4563, 4901, 5811, 10179, 12963, 14703, 17433, 25181, 38889, 44109, 52299, 56173, 75543, 116667, 132327, 168519, 226629, 505557, 679887, 730249, 1516671, 2190747, 6572241, 19716723]

約数ペア:

[(1, 19716723), (3, 6572241), (9, 2190747), (13, 1516671), (27, 730249), (29, 679887), (39, 505557), (87, 226629), (117, 168519), (149, 132327), (169, 116667), (261, 75543), (351, 56173), (377, 52299), (447, 44109), (507, 38889), (783, 25181), (1131, 17433), (1341, 14703), (1521, 12963), (1937, 10179), (3393, 5811), (4023, 4901), (4321, 4563)]