19198683

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 34228480

約数和(自身を除く): 15029797

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 129, 133, 171, 301, 373, 387, 399, 817, 903, 1119, 1197, 2451, 2611, 2709, 3357, 5719, 7087, 7353, 7833, 16039, 17157, 21261, 23499, 48117, 49609, 51471, 63783, 112273, 144351, 148827, 304741, 336819, 446481, 914223, 1010457, 2133187, 2742669, 6399561, 19198683]

約数ペア:

[(1, 19198683), (3, 6399561), (7, 2742669), (9, 2133187), (19, 1010457), (21, 914223), (43, 446481), (57, 336819), (63, 304741), (129, 148827), (133, 144351), (171, 112273), (301, 63783), (373, 51471), (387, 49609), (399, 48117), (817, 23499), (903, 21261), (1119, 17157), (1197, 16039), (2451, 7833), (2611, 7353), (2709, 7087), (3357, 5719)]