19187883

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{877}}^1$

素因数の和:924

約数の個数: 48

約数和(自身を含む): 34515936

約数和(自身を除く): 15328053

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 99, 117, 143, 153, 187, 221, 429, 561, 663, 877, 1287, 1683, 1989, 2431, 2631, 7293, 7893, 9647, 11401, 14909, 21879, 28941, 34203, 44727, 86823, 102609, 125411, 134181, 163999, 193817, 376233, 491997, 581451, 1128699, 1475991, 1744353, 2131987, 6395961, 19187883]

約数ペア:

[(1, 19187883), (3, 6395961), (9, 2131987), (11, 1744353), (13, 1475991), (17, 1128699), (33, 581451), (39, 491997), (51, 376233), (99, 193817), (117, 163999), (143, 134181), (153, 125411), (187, 102609), (221, 86823), (429, 44727), (561, 34203), (663, 28941), (877, 21879), (1287, 14909), (1683, 11401), (1989, 9647), (2431, 7893), (2631, 7293)]