21284872

素因数分解:

$2^3\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1019}}^1$

素因数の和:1405

約数の個数: 32

約数和(自身を含む): 45777600

約数和(自身を除く): 24492728

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 373, 746, 1019, 1492, 2038, 2611, 2984, 4076, 5222, 7133, 8152, 10444, 14266, 20888, 28532, 57064, 380087, 760174, 1520348, 2660609, 3040696, 5321218, 10642436, 21284872]

約数ペア:

[(1, 21284872), (2, 10642436), (4, 5321218), (7, 3040696), (8, 2660609), (14, 1520348), (28, 760174), (56, 380087), (373, 57064), (746, 28532), (1019, 20888), (1492, 14266), (2038, 10444), (2611, 8152), (2984, 7133), (4076, 5222)]