2021421381

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5066219}}^1$

素因数の和:5066248

約数の個数: 16

約数和(自身を含む): 3242380800

約数和(自身を除く): 1220959419

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 5066219, 15198657, 35463533, 96258161, 106390599, 288774483, 673807127, 2021421381]

約数ペア:

[(1, 2021421381), (3, 673807127), (7, 288774483), (19, 106390599), (21, 96258161), (57, 35463533), (133, 15198657), (399, 5066219)]