221279187

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{823}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 320371200

約数和(自身を除く): 99092013

約数列:

[1, 3, 19, 53, 57, 89, 159, 267, 823, 1007, 1691, 2469, 3021, 4717, 5073, 14151, 15637, 43619, 46911, 73247, 89623, 130857, 219741, 268869, 828761, 1391693, 2486283, 3882091, 4175079, 11646273, 73759729, 221279187]

約数ペア:

[(1, 221279187), (3, 73759729), (19, 11646273), (53, 4175079), (57, 3882091), (89, 2486283), (159, 1391693), (267, 828761), (823, 268869), (1007, 219741), (1691, 130857), (2469, 89623), (3021, 73247), (4717, 46911), (5073, 43619), (14151, 15637)]