18481645

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 9097235

約数列:

[1, 5, 7, 13, 35, 65, 91, 151, 269, 455, 755, 1057, 1345, 1883, 1963, 3497, 5285, 9415, 9815, 13741, 17485, 24479, 40619, 68705, 122395, 203095, 284333, 528047, 1421665, 2640235, 3696329, 18481645]

約数ペア:

[(1, 18481645), (5, 3696329), (7, 2640235), (13, 1421665), (35, 528047), (65, 284333), (91, 203095), (151, 122395), (269, 68705), (455, 40619), (755, 24479), (1057, 17485), (1345, 13741), (1883, 9815), (1963, 9415), (3497, 5285)]