19998672

素因数分解:

$2^4\times 3^1\times {\mathrm{401}}^1\times {\mathrm{1039}}^1$

素因数の和:1451

約数の個数: 40

約数和(自身を含む): 51841920

約数和(自身を除く): 31843248

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 401, 802, 1039, 1203, 1604, 2078, 2406, 3117, 3208, 4156, 4812, 6234, 6416, 8312, 9624, 12468, 16624, 19248, 24936, 49872, 416639, 833278, 1249917, 1666556, 2499834, 3333112, 4999668, 6666224, 9999336, 19998672]

約数ペア:

[(1, 19998672), (2, 9999336), (3, 6666224), (4, 4999668), (6, 3333112), (8, 2499834), (12, 1666556), (16, 1249917), (24, 833278), (48, 416639), (401, 49872), (802, 24936), (1039, 19248), (1203, 16624), (1604, 12468), (2078, 9624), (2406, 8312), (3117, 6416), (3208, 6234), (4156, 4812)]