18985857

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 29036544

約数和(自身を除く): 10050687

約数列:

[1, 3, 11, 31, 33, 67, 93, 201, 277, 341, 737, 831, 1023, 2077, 2211, 3047, 6231, 8587, 9141, 18559, 22847, 25761, 55677, 68541, 94457, 204149, 283371, 575329, 612447, 1725987, 6328619, 18985857]

約数ペア:

[(1, 18985857), (3, 6328619), (11, 1725987), (31, 612447), (33, 575329), (67, 283371), (93, 204149), (201, 94457), (277, 68541), (341, 55677), (737, 25761), (831, 22847), (1023, 18559), (2077, 9141), (2211, 8587), (3047, 6231)]