9780021

素因数分解:

$3^5\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:423

約数の個数: 24

約数和(自身を含む): 14798784

約数和(自身を除く): 5018763

約数列:

[1, 3, 9, 27, 81, 167, 241, 243, 501, 723, 1503, 2169, 4509, 6507, 13527, 19521, 40247, 40581, 58563, 120741, 362223, 1086669, 3260007, 9780021]

約数ペア:

[(1, 9780021), (3, 3260007), (9, 1086669), (27, 362223), (81, 120741), (167, 58563), (241, 40581), (243, 40247), (501, 19521), (723, 13527), (1503, 6507), (2169, 4509)]