19979386

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:814

約数の個数: 32

約数和(自身を含む): 36605952

約数和(自身を除く): 16626566

約数列:

[1, 2, 7, 14, 17, 34, 119, 127, 238, 254, 661, 889, 1322, 1778, 2159, 4318, 4627, 9254, 11237, 15113, 22474, 30226, 78659, 83947, 157318, 167894, 587629, 1175258, 1427099, 2854198, 9989693, 19979386]

約数ペア:

[(1, 19979386), (2, 9989693), (7, 2854198), (14, 1427099), (17, 1175258), (34, 587629), (119, 167894), (127, 157318), (238, 83947), (254, 78659), (661, 30226), (889, 22474), (1322, 15113), (1778, 11237), (2159, 9254), (4318, 4627)]