18991944

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{13883}}^1$

素因数の和:13914

約数の個数: 48

約数和(自身を含む): 54147600

約数和(自身を除く): 35155656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 13883, 27766, 41649, 55532, 83298, 111064, 124947, 166596, 249894, 263777, 333192, 499788, 527554, 791331, 999576, 1055108, 1582662, 2110216, 2373993, 3165324, 4747986, 6330648, 9495972, 18991944]

約数ペア:

[(1, 18991944), (2, 9495972), (3, 6330648), (4, 4747986), (6, 3165324), (8, 2373993), (9, 2110216), (12, 1582662), (18, 1055108), (19, 999576), (24, 791331), (36, 527554), (38, 499788), (57, 333192), (72, 263777), (76, 249894), (114, 166596), (152, 124947), (171, 111064), (228, 83298), (342, 55532), (456, 41649), (684, 27766), (1368, 13883)]