1405719

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 2369952

約数和(自身を除く): 964233

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 421, 477, 1113, 1263, 2947, 3339, 3789, 8841, 22313, 26523, 66939, 156191, 200817, 468573, 1405719]

約数ペア:

[(1, 1405719), (3, 468573), (7, 200817), (9, 156191), (21, 66939), (53, 26523), (63, 22313), (159, 8841), (371, 3789), (421, 3339), (477, 2947), (1113, 1263)]