1900821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 32

約数和(自身を含む): 2999808

約数和(自身を除く): 1098987

約数列:

[1, 3, 13, 17, 39, 47, 51, 61, 141, 183, 221, 611, 663, 793, 799, 1037, 1833, 2379, 2397, 2867, 3111, 8601, 10387, 13481, 31161, 37271, 40443, 48739, 111813, 146217, 633607, 1900821]

約数ペア:

[(1, 1900821), (3, 633607), (13, 146217), (17, 111813), (39, 48739), (47, 40443), (51, 37271), (61, 31161), (141, 13481), (183, 10387), (221, 8601), (611, 3111), (663, 2867), (793, 2397), (799, 2379), (1037, 1833)]