20475974

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3517}}^1$

素因数の和:3631

約数の個数: 16

約数和(自身を含む): 31915296

約数和(自身を除く): 11439322

約数列:

[1, 2, 41, 71, 82, 142, 2911, 3517, 5822, 7034, 144197, 249707, 288394, 499414, 10237987, 20475974]

約数ペア:

[(1, 20475974), (2, 10237987), (41, 499414), (71, 288394), (82, 249707), (142, 144197), (2911, 7034), (3517, 5822)]