19693947

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{72139}}^1$

素因数の和:72162

約数の個数: 16

約数和(自身を含む): 32318720

約数和(自身を除く): 12624773

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 72139, 216417, 504973, 937807, 1514919, 2813421, 6564649, 19693947]

約数ペア:

[(1, 19693947), (3, 6564649), (7, 2813421), (13, 1514919), (21, 937807), (39, 504973), (91, 216417), (273, 72139)]