19698808

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{439}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 18317192

約数列:

[1, 2, 4, 8, 71, 79, 142, 158, 284, 316, 439, 568, 632, 878, 1756, 3512, 5609, 11218, 22436, 31169, 34681, 44872, 62338, 69362, 124676, 138724, 249352, 277448, 2462351, 4924702, 9849404, 19698808]

約数ペア:

[(1, 19698808), (2, 9849404), (4, 4924702), (8, 2462351), (71, 277448), (79, 249352), (142, 138724), (158, 124676), (284, 69362), (316, 62338), (439, 44872), (568, 34681), (632, 31169), (878, 22436), (1756, 11218), (3512, 5609)]