18793185

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 34283520

約数和(自身を除く): 15490335

約数列:

[1, 3, 5, 15, 19, 23, 47, 57, 61, 69, 95, 115, 141, 183, 235, 285, 305, 345, 437, 705, 893, 915, 1081, 1159, 1311, 1403, 2185, 2679, 2867, 3243, 3477, 4209, 4465, 5405, 5795, 6555, 7015, 8601, 13395, 14335, 16215, 17385, 20539, 21045, 26657, 43005, 54473, 61617, 65941, 79971, 102695, 133285, 163419, 197823, 272365, 308085, 329705, 399855, 817095, 989115, 1252879, 3758637, 6264395, 18793185]

約数ペア:

[(1, 18793185), (3, 6264395), (5, 3758637), (15, 1252879), (19, 989115), (23, 817095), (47, 399855), (57, 329705), (61, 308085), (69, 272365), (95, 197823), (115, 163419), (141, 133285), (183, 102695), (235, 79971), (285, 65941), (305, 61617), (345, 54473), (437, 43005), (705, 26657), (893, 21045), (915, 20539), (1081, 17385), (1159, 16215), (1311, 14335), (1403, 13395), (2185, 8601), (2679, 7015), (2867, 6555), (3243, 5795), (3477, 5405), (4209, 4465)]