21000260004

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1303069}}^1$

素因数の和:1303172

約数の個数: 48

約数和(自身を含む): 52539782400

約数和(自身を除く): 31539522396

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 79, 102, 158, 204, 237, 316, 474, 948, 1343, 2686, 4029, 5372, 8058, 16116, 1303069, 2606138, 3909207, 5212276, 7818414, 15636828, 22152173, 44304346, 66456519, 88608692, 102942451, 132913038, 205884902, 265826076, 308827353, 411769804, 617654706, 1235309412, 1750021667, 3500043334, 5250065001, 7000086668, 10500130002, 21000260004]

約数ペア:

[(1, 21000260004), (2, 10500130002), (3, 7000086668), (4, 5250065001), (6, 3500043334), (12, 1750021667), (17, 1235309412), (34, 617654706), (51, 411769804), (68, 308827353), (79, 265826076), (102, 205884902), (158, 132913038), (204, 102942451), (237, 88608692), (316, 66456519), (474, 44304346), (948, 22152173), (1343, 15636828), (2686, 7818414), (4029, 5212276), (5372, 3909207), (8058, 2606138), (16116, 1303069)]