47781981

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{45377}}^1$

素因数の和:45402

約数の個数: 20

約数和(自身を含む): 76870332

約数和(自身を除く): 29088351

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 45377, 136131, 408393, 589901, 1225179, 1769703, 3675537, 5309109, 15927327, 47781981]

約数ペア:

[(1, 47781981), (3, 15927327), (9, 5309109), (13, 3675537), (27, 1769703), (39, 1225179), (81, 589901), (117, 408393), (351, 136131), (1053, 45377)]