21784072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5167}}^1$

素因数の和:5221

約数の個数: 32

約数和(自身を含む): 44651520

約数和(自身を除く): 22867448

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 5167, 10334, 20668, 41336, 87839, 160177, 175678, 320354, 351356, 640708, 702712, 1281416, 2723009, 5446018, 10892036, 21784072]

約数ペア:

[(1, 21784072), (2, 10892036), (4, 5446018), (8, 2723009), (17, 1281416), (31, 702712), (34, 640708), (62, 351356), (68, 320354), (124, 175678), (136, 160177), (248, 87839), (527, 41336), (1054, 20668), (2108, 10334), (4216, 5167)]