71981349

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4139}}^1$

素因数の和:4201

約数の個数: 32

約数和(自身を含む): 114462720

約数和(自身を除く): 42481371

約数列:

[1, 3, 11, 17, 31, 33, 51, 93, 187, 341, 527, 561, 1023, 1581, 4139, 5797, 12417, 17391, 45529, 70363, 128309, 136587, 211089, 384927, 773993, 1411399, 2181253, 2321979, 4234197, 6543759, 23993783, 71981349]

約数ペア:

[(1, 71981349), (3, 23993783), (11, 6543759), (17, 4234197), (31, 2321979), (33, 2181253), (51, 1411399), (93, 773993), (187, 384927), (341, 211089), (527, 136587), (561, 128309), (1023, 70363), (1581, 45529), (4139, 17391), (5797, 12417)]