201813220721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{18281839}}^1$

素因数の和:18281948

約数の個数: 16

約数和(自身を含む): 245707929600

約数和(自身を除く): 43894708879

約数列:

[1, 7, 19, 83, 133, 581, 1577, 11039, 18281839, 127972873, 347354941, 1517392637, 2431484587, 10621748459, 28830460103, 201813220721]

約数ペア:

[(1, 201813220721), (7, 28830460103), (19, 10621748459), (83, 2431484587), (133, 1517392637), (581, 347354941), (1577, 127972873), (11039, 18281839)]