21541128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{128221}}^1$

素因数の和:128237

約数の個数: 32

約数和(自身を含む): 61546560

約数和(自身を除く): 40005432

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 128221, 256442, 384663, 512884, 769326, 897547, 1025768, 1538652, 1795094, 2692641, 3077304, 3590188, 5385282, 7180376, 10770564, 21541128]

約数ペア:

[(1, 21541128), (2, 10770564), (3, 7180376), (4, 5385282), (6, 3590188), (7, 3077304), (8, 2692641), (12, 1795094), (14, 1538652), (21, 1025768), (24, 897547), (28, 769326), (42, 512884), (56, 384663), (84, 256442), (168, 128221)]