21128776

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1741}}^1$

素因数の和:1825

約数の個数: 32

約数和(自身を含む): 41703480

約数和(自身を除く): 20574704

約数列:

[1, 2, 4, 8, 37, 41, 74, 82, 148, 164, 296, 328, 1517, 1741, 3034, 3482, 6068, 6964, 12136, 13928, 64417, 71381, 128834, 142762, 257668, 285524, 515336, 571048, 2641097, 5282194, 10564388, 21128776]

約数ペア:

[(1, 21128776), (2, 10564388), (4, 5282194), (8, 2641097), (37, 571048), (41, 515336), (74, 285524), (82, 257668), (148, 142762), (164, 128834), (296, 71381), (328, 64417), (1517, 13928), (1741, 12136), (3034, 6964), (3482, 6068)]