247293813

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{9203}}^1$

素因数の和:9285

約数の個数: 24

約数和(自身を含む): 363815712

約数和(自身を除く): 116521899

約数列:

[1, 3, 13, 39, 53, 159, 169, 507, 689, 2067, 8957, 9203, 26871, 27609, 119639, 358917, 487759, 1463277, 1555307, 4665921, 6340867, 19022601, 82431271, 247293813]

約数ペア:

[(1, 247293813), (3, 82431271), (13, 19022601), (39, 6340867), (53, 4665921), (159, 1555307), (169, 1463277), (507, 487759), (689, 358917), (2067, 119639), (8957, 27609), (9203, 26871)]