21730917

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{4931}}^1$

素因数の和:5060

約数の個数: 16

約数和(自身を含む): 31485888

約数和(自身を除く): 9754971

約数列:

[1, 3, 13, 39, 113, 339, 1469, 4407, 4931, 14793, 64103, 192309, 557203, 1671609, 7243639, 21730917]

約数ペア:

[(1, 21730917), (3, 7243639), (13, 1671609), (39, 557203), (113, 192309), (339, 64103), (1469, 14793), (4407, 4931)]