1277893491

素因数分解:

$3^1\times 7^3\times {\mathrm{1241879}}^1$

素因数の和:1241903

約数の個数: 16

約数和(自身を含む): 1987008000

約数和(自身を除く): 709114509

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 1241879, 3725637, 8693153, 26079459, 60852071, 182556213, 425964497, 1277893491]

約数ペア:

[(1, 1277893491), (3, 425964497), (7, 182556213), (21, 60852071), (49, 26079459), (147, 8693153), (343, 3725637), (1029, 1241879)]