17771984

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:339

約数の個数: 40

約数和(自身を含む): 35518560

約数和(自身を除く): 17746576

約数列:

[1, 2, 4, 8, 16, 61, 122, 131, 139, 244, 262, 278, 488, 524, 556, 976, 1048, 1112, 2096, 2224, 7991, 8479, 15982, 16958, 18209, 31964, 33916, 36418, 63928, 67832, 72836, 127856, 135664, 145672, 291344, 1110749, 2221498, 4442996, 8885992, 17771984]

約数ペア:

[(1, 17771984), (2, 8885992), (4, 4442996), (8, 2221498), (16, 1110749), (61, 291344), (122, 145672), (131, 135664), (139, 127856), (244, 72836), (262, 67832), (278, 63928), (488, 36418), (524, 33916), (556, 31964), (976, 18209), (1048, 16958), (1112, 15982), (2096, 8479), (2224, 7991)]