19449989

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 23106048

約数和(自身を除く): 3656059

約数列:

[1, 13, 17, 31, 167, 221, 289, 403, 527, 2171, 2839, 3757, 5177, 6851, 8959, 36907, 48263, 67301, 88009, 116467, 627419, 1144117, 1496153, 19449989]

約数ペア:

[(1, 19449989), (13, 1496153), (17, 1144117), (31, 627419), (167, 116467), (221, 88009), (289, 67301), (403, 48263), (527, 36907), (2171, 8959), (2839, 6851), (3757, 5177)]