18906784

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{967}}^1$

素因数の和:1037

約数の個数: 48

約数和(自身を含む): 40981248

約数和(自身を除く): 22074464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 94, 104, 188, 208, 376, 416, 611, 752, 967, 1222, 1504, 1934, 2444, 3868, 4888, 7736, 9776, 12571, 15472, 19552, 25142, 30944, 45449, 50284, 90898, 100568, 181796, 201136, 363592, 402272, 590837, 727184, 1181674, 1454368, 2363348, 4726696, 9453392, 18906784]

約数ペア:

[(1, 18906784), (2, 9453392), (4, 4726696), (8, 2363348), (13, 1454368), (16, 1181674), (26, 727184), (32, 590837), (47, 402272), (52, 363592), (94, 201136), (104, 181796), (188, 100568), (208, 90898), (376, 50284), (416, 45449), (611, 30944), (752, 25142), (967, 19552), (1222, 15472), (1504, 12571), (1934, 9776), (2444, 7736), (3868, 4888)]