18951088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{509}}^1$

素因数の和:709

約数の個数: 40

約数和(自身を含む): 39841200

約数和(自身を除く): 20890112

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 179, 208, 358, 509, 716, 1018, 1432, 2036, 2327, 2864, 4072, 4654, 6617, 8144, 9308, 13234, 18616, 26468, 37232, 52936, 91111, 105872, 182222, 364444, 728888, 1184443, 1457776, 2368886, 4737772, 9475544, 18951088]

約数ペア:

[(1, 18951088), (2, 9475544), (4, 4737772), (8, 2368886), (13, 1457776), (16, 1184443), (26, 728888), (52, 364444), (104, 182222), (179, 105872), (208, 91111), (358, 52936), (509, 37232), (716, 26468), (1018, 18616), (1432, 13234), (2036, 9308), (2327, 8144), (2864, 6617), (4072, 4654)]