19389201

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{167}}^1\times {\mathrm{229}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 28284480

約数和(自身を除く): 8895279

約数列:

[1, 3, 13, 39, 167, 169, 229, 501, 507, 687, 2171, 2977, 6513, 8931, 28223, 38243, 38701, 84669, 114729, 116103, 497159, 1491477, 6463067, 19389201]

約数ペア:

[(1, 19389201), (3, 6463067), (13, 1491477), (39, 497159), (167, 116103), (169, 114729), (229, 84669), (501, 38701), (507, 38243), (687, 28223), (2171, 8931), (2977, 6513)]