21235397876

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{57503}}^1$

素因数の和:57645

約数の個数: 72

約数和(自身を含む): 47111877120

約数和(自身を除く): 25876479244

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 109, 121, 154, 218, 242, 308, 436, 484, 763, 847, 1199, 1526, 1694, 2398, 3052, 3388, 4796, 8393, 13189, 16786, 26378, 33572, 52756, 57503, 92323, 115006, 184646, 230012, 369292, 402521, 632533, 805042, 1265066, 1610084, 2530132, 4427731, 6267827, 6957863, 8855462, 12535654, 13915726, 17710924, 25071308, 27831452, 43874789, 48705041, 68946097, 87749578, 97410082, 137892194, 175499156, 194820164, 275784388, 482622679, 758407067, 965245358, 1516814134, 1930490716, 3033628268, 5308849469, 10617698938, 21235397876]

約数ペア:

[(1, 21235397876), (2, 10617698938), (4, 5308849469), (7, 3033628268), (11, 1930490716), (14, 1516814134), (22, 965245358), (28, 758407067), (44, 482622679), (77, 275784388), (109, 194820164), (121, 175499156), (154, 137892194), (218, 97410082), (242, 87749578), (308, 68946097), (436, 48705041), (484, 43874789), (763, 27831452), (847, 25071308), (1199, 17710924), (1526, 13915726), (1694, 12535654), (2398, 8855462), (3052, 6957863), (3388, 6267827), (4796, 4427731), (8393, 2530132), (13189, 1610084), (16786, 1265066), (26378, 805042), (33572, 632533), (52756, 402521), (57503, 369292), (92323, 230012), (115006, 184646)]