28547519

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 40965120

約数和(自身を除く): 12417601

約数列:

[1, 7, 11, 13, 19, 77, 79, 91, 133, 143, 209, 247, 361, 553, 869, 1001, 1027, 1463, 1501, 1729, 2527, 2717, 3971, 4693, 6083, 7189, 10507, 11297, 16511, 19019, 19513, 27797, 28519, 32851, 51623, 79079, 115577, 136591, 199633, 214643, 313709, 361361, 370747, 1502501, 2195963, 2595229, 4078217, 28547519]

約数ペア:

[(1, 28547519), (7, 4078217), (11, 2595229), (13, 2195963), (19, 1502501), (77, 370747), (79, 361361), (91, 313709), (133, 214643), (143, 199633), (209, 136591), (247, 115577), (361, 79079), (553, 51623), (869, 32851), (1001, 28519), (1027, 27797), (1463, 19513), (1501, 19019), (1729, 16511), (2527, 11297), (2717, 10507), (3971, 7189), (4693, 6083)]