20307537

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 11867823

約数列:

[1, 3, 9, 17, 27, 51, 151, 153, 293, 453, 459, 879, 1359, 2567, 2637, 4077, 4981, 7701, 7911, 14943, 23103, 44243, 44829, 69309, 132729, 134487, 398187, 752131, 1194561, 2256393, 6769179, 20307537]

約数ペア:

[(1, 20307537), (3, 6769179), (9, 2256393), (17, 1194561), (27, 752131), (51, 398187), (151, 134487), (153, 132729), (293, 69309), (453, 44829), (459, 44243), (879, 23103), (1359, 14943), (2567, 7911), (2637, 7701), (4077, 4981)]