25354287

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 43867200

約数和(自身を除く): 18512913

約数列:

[1, 3, 7, 9, 21, 37, 63, 73, 111, 149, 219, 259, 333, 447, 511, 657, 777, 1043, 1341, 1533, 2331, 2701, 3129, 4599, 5513, 8103, 9387, 10877, 16539, 18907, 24309, 32631, 38591, 49617, 56721, 76139, 97893, 115773, 170163, 228417, 347319, 402449, 685251, 1207347, 2817143, 3622041, 8451429, 25354287]

約数ペア:

[(1, 25354287), (3, 8451429), (7, 3622041), (9, 2817143), (21, 1207347), (37, 685251), (63, 402449), (73, 347319), (111, 228417), (149, 170163), (219, 115773), (259, 97893), (333, 76139), (447, 56721), (511, 49617), (657, 38591), (777, 32631), (1043, 24309), (1341, 18907), (1533, 16539), (2331, 10877), (2701, 9387), (3129, 8103), (4599, 5513)]