21179218370

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{409}}^1\times {\mathrm{20149}}^1$

素因数の和:20822

約数の個数: 32

約数和(自身を含む): 38366406000

約数和(自身を除く): 17187187630

約数列:

[1, 2, 5, 10, 257, 409, 514, 818, 1285, 2045, 2570, 4090, 20149, 40298, 100745, 105113, 201490, 210226, 525565, 1051130, 5178293, 8240941, 10356586, 16481882, 25891465, 41204705, 51782930, 82409410, 2117921837, 4235843674, 10589609185, 21179218370]

約数ペア:

[(1, 21179218370), (2, 10589609185), (5, 4235843674), (10, 2117921837), (257, 82409410), (409, 51782930), (514, 41204705), (818, 25891465), (1285, 16481882), (2045, 10356586), (2570, 8240941), (4090, 5178293), (20149, 1051130), (40298, 525565), (100745, 210226), (105113, 201490)]