21190132912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{164581}}^1$

素因数の和:165221

約数の個数: 40

約数和(自身を含む): 44285724560

約数和(自身を除く): 23095591648

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 619, 1238, 2476, 4952, 8047, 9904, 16094, 32188, 64376, 128752, 164581, 329162, 658324, 1316648, 2139553, 2633296, 4279106, 8558212, 17116424, 34232848, 101875639, 203751278, 407502556, 815005112, 1324383307, 1630010224, 2648766614, 5297533228, 10595066456, 21190132912]

約数ペア:

[(1, 21190132912), (2, 10595066456), (4, 5297533228), (8, 2648766614), (13, 1630010224), (16, 1324383307), (26, 815005112), (52, 407502556), (104, 203751278), (208, 101875639), (619, 34232848), (1238, 17116424), (2476, 8558212), (4952, 4279106), (8047, 2633296), (9904, 2139553), (16094, 1316648), (32188, 658324), (64376, 329162), (128752, 164581)]