19999476

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4177}}^1$

素因数の和:4213

約数の個数: 72

約数和(自身を含む): 60831680

約数和(自身を除く): 40832204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 28, 36, 38, 42, 57, 63, 76, 84, 114, 126, 133, 171, 228, 252, 266, 342, 399, 532, 684, 798, 1197, 1596, 2394, 4177, 4788, 8354, 12531, 16708, 25062, 29239, 37593, 50124, 58478, 75186, 79363, 87717, 116956, 150372, 158726, 175434, 238089, 263151, 317452, 350868, 476178, 526302, 555541, 714267, 952356, 1052604, 1111082, 1428534, 1666623, 2222164, 2857068, 3333246, 4999869, 6666492, 9999738, 19999476]

約数ペア:

[(1, 19999476), (2, 9999738), (3, 6666492), (4, 4999869), (6, 3333246), (7, 2857068), (9, 2222164), (12, 1666623), (14, 1428534), (18, 1111082), (19, 1052604), (21, 952356), (28, 714267), (36, 555541), (38, 526302), (42, 476178), (57, 350868), (63, 317452), (76, 263151), (84, 238089), (114, 175434), (126, 158726), (133, 150372), (171, 116956), (228, 87717), (252, 79363), (266, 75186), (342, 58478), (399, 50124), (532, 37593), (684, 29239), (798, 25062), (1197, 16708), (1596, 12531), (2394, 8354), (4177, 4788)]