71638623

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 123413056

約数和(自身を除く): 51774433

約数列:

[1, 3, 7, 9, 21, 37, 63, 73, 111, 219, 259, 333, 421, 511, 657, 777, 1263, 1533, 2331, 2701, 2947, 3789, 4599, 8103, 8841, 15577, 18907, 24309, 26523, 30733, 46731, 56721, 92199, 109039, 140193, 170163, 215131, 276597, 327117, 645393, 981351, 1137121, 1936179, 3411363, 7959847, 10234089, 23879541, 71638623]

約数ペア:

[(1, 71638623), (3, 23879541), (7, 10234089), (9, 7959847), (21, 3411363), (37, 1936179), (63, 1137121), (73, 981351), (111, 645393), (219, 327117), (259, 276597), (333, 215131), (421, 170163), (511, 140193), (657, 109039), (777, 92199), (1263, 56721), (1533, 46731), (2331, 30733), (2701, 26523), (2947, 24309), (3789, 18907), (4599, 15577), (8103, 8841)]