21764260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1873}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 52891776

約数和(自身を除く): 31127516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 332, 415, 581, 830, 1162, 1660, 1873, 2324, 2905, 3746, 5810, 7492, 9365, 11620, 13111, 18730, 26222, 37460, 52444, 65555, 131110, 155459, 262220, 310918, 621836, 777295, 1088213, 1554590, 2176426, 3109180, 4352852, 5441065, 10882130, 21764260]

約数ペア:

[(1, 21764260), (2, 10882130), (4, 5441065), (5, 4352852), (7, 3109180), (10, 2176426), (14, 1554590), (20, 1088213), (28, 777295), (35, 621836), (70, 310918), (83, 262220), (140, 155459), (166, 131110), (332, 65555), (415, 52444), (581, 37460), (830, 26222), (1162, 18730), (1660, 13111), (1873, 11620), (2324, 9365), (2905, 7492), (3746, 5810)]