21338638

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{569}}^1\times {\mathrm{1103}}^1$

素因数の和:1691

約数の個数: 16

約数和(自身を含む): 33981120

約数和(自身を除く): 12642482

約数列:

[1, 2, 17, 34, 569, 1103, 1138, 2206, 9673, 18751, 19346, 37502, 627607, 1255214, 10669319, 21338638]

約数ペア:

[(1, 21338638), (2, 10669319), (17, 1255214), (34, 627607), (569, 37502), (1103, 19346), (1138, 18751), (2206, 9673)]