28918911

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3271}}^1$

素因数の和:3702

約数の個数: 16

約数和(自身を含む): 44185088

約数和(自身を除く): 15266177

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 3271, 8841, 9813, 22897, 68691, 1377091, 4131273, 9639637, 28918911]

約数ペア:

[(1, 28918911), (3, 9639637), (7, 4131273), (21, 1377091), (421, 68691), (1263, 22897), (2947, 9813), (3271, 8841)]