408978819

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 641172480

約数和(自身を除く): 232193661

約数列:

[1, 3, 9, 19, 47, 57, 141, 151, 171, 337, 423, 453, 893, 1011, 1359, 2679, 2869, 3033, 6403, 7097, 8037, 8607, 15839, 19209, 21291, 25821, 47517, 50887, 57627, 63873, 134843, 142551, 152661, 300941, 404529, 457983, 902823, 966853, 1213587, 2391689, 2708469, 2900559, 7175067, 8701677, 21525201, 45442091, 136326273, 408978819]

約数ペア:

[(1, 408978819), (3, 136326273), (9, 45442091), (19, 21525201), (47, 8701677), (57, 7175067), (141, 2900559), (151, 2708469), (171, 2391689), (337, 1213587), (423, 966853), (453, 902823), (893, 457983), (1011, 404529), (1359, 300941), (2679, 152661), (2869, 142551), (3033, 134843), (6403, 63873), (7097, 57627), (8037, 50887), (8607, 47517), (15839, 25821), (19209, 21291)]