215221406398

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131714447}}^1$

素因数の和:131714511

約数の個数: 16

約数和(自身を含む): 347726142720

約数和(自身を除く): 132504736322

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 131714447, 263428894, 2502574493, 5005148986, 5663721221, 11327442442, 107610703199, 215221406398]

約数ペア:

[(1, 215221406398), (2, 107610703199), (19, 11327442442), (38, 5663721221), (43, 5005148986), (86, 2502574493), (817, 263428894), (1634, 131714447)]