19398275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3511}}^1$

素因数の和:3551

約数の個数: 24

約数和(自身を含む): 27435744

約数和(自身を除く): 8037469

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 3511, 5525, 17555, 45643, 59687, 87775, 228215, 298435, 775931, 1141075, 1492175, 3879655, 19398275]

約数ペア:

[(1, 19398275), (5, 3879655), (13, 1492175), (17, 1141075), (25, 775931), (65, 298435), (85, 228215), (221, 87775), (325, 59687), (425, 45643), (1105, 17555), (3511, 5525)]