19419855

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{347}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 39287808

約数和(自身を除く): 19867953

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 91, 105, 123, 195, 205, 273, 287, 347, 455, 533, 615, 861, 1041, 1365, 1435, 1599, 1735, 2429, 2665, 3731, 4305, 4511, 5205, 7287, 7995, 11193, 12145, 13533, 14227, 18655, 22555, 31577, 36435, 42681, 55965, 67665, 71135, 94731, 99589, 157885, 184951, 213405, 298767, 473655, 497945, 554853, 924755, 1294657, 1493835, 2774265, 3883971, 6473285, 19419855]

約数ペア:

[(1, 19419855), (3, 6473285), (5, 3883971), (7, 2774265), (13, 1493835), (15, 1294657), (21, 924755), (35, 554853), (39, 497945), (41, 473655), (65, 298767), (91, 213405), (105, 184951), (123, 157885), (195, 99589), (205, 94731), (273, 71135), (287, 67665), (347, 55965), (455, 42681), (533, 36435), (615, 31577), (861, 22555), (1041, 18655), (1365, 14227), (1435, 13533), (1599, 12145), (1735, 11193), (2429, 7995), (2665, 7287), (3731, 5205), (4305, 4511)]