211502015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{757}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 284886720

約数和(自身を除く): 73384705

約数列:

[1, 5, 17, 19, 85, 95, 173, 323, 757, 865, 1615, 2941, 3287, 3785, 12869, 14383, 14705, 16435, 55879, 64345, 71915, 130961, 244511, 279395, 654805, 1222555, 2226337, 2488259, 11131685, 12441295, 42300403, 211502015]

約数ペア:

[(1, 211502015), (5, 42300403), (17, 12441295), (19, 11131685), (85, 2488259), (95, 2226337), (173, 1222555), (323, 654805), (757, 279395), (865, 244511), (1615, 130961), (2941, 71915), (3287, 64345), (3785, 55879), (12869, 16435), (14383, 14705)]