19667888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2145

約数の個数: 40

約数和(自身を含む): 41425920

約数和(自身を除く): 21758032

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2087, 2356, 4174, 4712, 8348, 9424, 16696, 33392, 39653, 64697, 79306, 129394, 158612, 258788, 317224, 517576, 634448, 1035152, 1229243, 2458486, 4916972, 9833944, 19667888]

約数ペア:

[(1, 19667888), (2, 9833944), (4, 4916972), (8, 2458486), (16, 1229243), (19, 1035152), (31, 634448), (38, 517576), (62, 317224), (76, 258788), (124, 158612), (152, 129394), (248, 79306), (304, 64697), (496, 39653), (589, 33392), (1178, 16696), (2087, 9424), (2356, 8348), (4174, 4712)]