21369128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6563}}^1$

素因数の和:6617

約数の個数: 32

約数和(自身を含む): 44897760

約数和(自身を除く): 23528632

約数列:

[1, 2, 4, 8, 11, 22, 37, 44, 74, 88, 148, 296, 407, 814, 1628, 3256, 6563, 13126, 26252, 52504, 72193, 144386, 242831, 288772, 485662, 577544, 971324, 1942648, 2671141, 5342282, 10684564, 21369128]

約数ペア:

[(1, 21369128), (2, 10684564), (4, 5342282), (8, 2671141), (11, 1942648), (22, 971324), (37, 577544), (44, 485662), (74, 288772), (88, 242831), (148, 144386), (296, 72193), (407, 52504), (814, 26252), (1628, 13126), (3256, 6563)]