19386213

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 34583040

約数和(自身を除く): 15196827

約数列:

[1, 3, 7, 11, 19, 21, 33, 49, 57, 77, 133, 147, 209, 231, 399, 539, 627, 631, 931, 1463, 1617, 1893, 2793, 4389, 4417, 6941, 10241, 11989, 13251, 20823, 30723, 30919, 35967, 48587, 83923, 92757, 131879, 145761, 251769, 340109, 395637, 587461, 923153, 1020327, 1762383, 2769459, 6462071, 19386213]

約数ペア:

[(1, 19386213), (3, 6462071), (7, 2769459), (11, 1762383), (19, 1020327), (21, 923153), (33, 587461), (49, 395637), (57, 340109), (77, 251769), (133, 145761), (147, 131879), (209, 92757), (231, 83923), (399, 48587), (539, 35967), (627, 30919), (631, 30723), (931, 20823), (1463, 13251), (1617, 11989), (1893, 10241), (2793, 6941), (4389, 4417)]