201991251

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{23633}}^1$

素因数の和:23691

約数の個数: 32

約数和(自身を含む): 344867328

約数和(自身を除く): 142876077

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 259, 407, 777, 1221, 2849, 8547, 23633, 70899, 165431, 259963, 496293, 779889, 874421, 1819741, 2623263, 5459223, 6120947, 9618631, 18362841, 28855893, 67330417, 201991251]

約数ペア:

[(1, 201991251), (3, 67330417), (7, 28855893), (11, 18362841), (21, 9618631), (33, 6120947), (37, 5459223), (77, 2623263), (111, 1819741), (231, 874421), (259, 779889), (407, 496293), (777, 259963), (1221, 165431), (2849, 70899), (8547, 23633)]