20347956447

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{74534639}}^1$

素因数の和:74534662

約数の個数: 16

約数和(自身を含む): 33391518720

約数和(自身を除く): 13043562273

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 74534639, 223603917, 521742473, 968950307, 1565227419, 2906850921, 6782652149, 20347956447]

約数ペア:

[(1, 20347956447), (3, 6782652149), (7, 2906850921), (13, 1565227419), (21, 968950307), (39, 521742473), (91, 223603917), (273, 74534639)]