221048891

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{1889}}^1$

素因数の和:2198

約数の個数: 16

約数和(自身を含む): 257342400

約数和(自身を除く): 36293509

約数列:

[1, 7, 73, 229, 511, 1603, 1889, 13223, 16717, 117019, 137897, 432581, 965279, 3028067, 31578413, 221048891]

約数ペア:

[(1, 221048891), (7, 31578413), (73, 3028067), (229, 965279), (511, 432581), (1603, 137897), (1889, 117019), (13223, 16717)]