20171828054

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2081}}^1\times {\mathrm{18713}}^1$

素因数の和:20840

約数の個数: 32

約数和(自身を含む): 35533843776

約数和(自身を除く): 15362015722

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 2081, 4162, 14567, 18713, 29134, 37426, 76997, 130991, 153994, 261982, 538979, 692381, 1077958, 1384762, 4846667, 9693334, 38941753, 77883506, 272592271, 545184542, 1440844861, 2881689722, 10085914027, 20171828054]

約数ペア:

[(1, 20171828054), (2, 10085914027), (7, 2881689722), (14, 1440844861), (37, 545184542), (74, 272592271), (259, 77883506), (518, 38941753), (2081, 9693334), (4162, 4846667), (14567, 1384762), (18713, 1077958), (29134, 692381), (37426, 538979), (76997, 261982), (130991, 153994)]