172974519

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:320

約数の個数: 36

約数和(自身を含む): 261195480

約数和(自身を除く): 88220961

約数列:

[1, 3, 9, 37, 101, 111, 139, 303, 333, 417, 909, 1251, 1369, 3737, 4107, 5143, 11211, 12321, 14039, 15429, 33633, 42117, 46287, 126351, 138269, 190291, 414807, 519443, 570873, 1244421, 1558329, 1712619, 4674987, 19219391, 57658173, 172974519]

約数ペア:

[(1, 172974519), (3, 57658173), (9, 19219391), (37, 4674987), (101, 1712619), (111, 1558329), (139, 1244421), (303, 570873), (333, 519443), (417, 414807), (909, 190291), (1251, 138269), (1369, 126351), (3737, 46287), (4107, 42117), (5143, 33633), (11211, 15429), (12321, 14039)]