81215406

素因数分解:

$2^1\times 3^3\times {\mathrm{1503989}}^1$

素因数の和:1504000

約数の個数: 16

約数和(自身を含む): 180478800

約数和(自身を除く): 99263394

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 1503989, 3007978, 4511967, 9023934, 13535901, 27071802, 40607703, 81215406]

約数ペア:

[(1, 81215406), (2, 40607703), (3, 27071802), (6, 13535901), (9, 9023934), (18, 4511967), (27, 3007978), (54, 1503989)]