251973891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{21323}}^1$

素因数の和:21443

約数の個数: 24

約数和(自身を含む): 395858736

約数和(自身を除く): 143884845

約数列:

[1, 3, 9, 13, 39, 101, 117, 303, 909, 1313, 3939, 11817, 21323, 63969, 191907, 277199, 831597, 2153623, 2494791, 6460869, 19382607, 27997099, 83991297, 251973891]

約数ペア:

[(1, 251973891), (3, 83991297), (9, 27997099), (13, 19382607), (39, 6460869), (101, 2494791), (117, 2153623), (303, 831597), (909, 277199), (1313, 191907), (3939, 63969), (11817, 21323)]