19557916

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{379}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 41708800

約数和(自身を除く): 22150884

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 97, 133, 194, 266, 379, 388, 532, 679, 758, 1358, 1516, 1843, 2653, 2716, 3686, 5306, 7201, 7372, 10612, 12901, 14402, 25802, 28804, 36763, 50407, 51604, 73526, 100814, 147052, 201628, 257341, 514682, 698497, 1029364, 1396994, 2793988, 4889479, 9778958, 19557916]

約数ペア:

[(1, 19557916), (2, 9778958), (4, 4889479), (7, 2793988), (14, 1396994), (19, 1029364), (28, 698497), (38, 514682), (76, 257341), (97, 201628), (133, 147052), (194, 100814), (266, 73526), (379, 51604), (388, 50407), (532, 36763), (679, 28804), (758, 25802), (1358, 14402), (1516, 12901), (1843, 10612), (2653, 7372), (2716, 7201), (3686, 5306)]