19816952

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 18285448

約数列:

[1, 2, 4, 8, 71, 139, 142, 251, 278, 284, 502, 556, 568, 1004, 1112, 2008, 9869, 17821, 19738, 34889, 35642, 39476, 69778, 71284, 78952, 139556, 142568, 279112, 2477119, 4954238, 9908476, 19816952]

約数ペア:

[(1, 19816952), (2, 9908476), (4, 4954238), (8, 2477119), (71, 279112), (139, 142568), (142, 139556), (251, 78952), (278, 71284), (284, 69778), (502, 39476), (556, 35642), (568, 34889), (1004, 19738), (1112, 17821), (2008, 9869)]