18293884

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 20655236

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 137, 251, 266, 274, 502, 532, 548, 959, 1004, 1757, 1918, 2603, 3514, 3836, 4769, 5206, 7028, 9538, 10412, 18221, 19076, 33383, 34387, 36442, 66766, 68774, 72884, 133532, 137548, 240709, 481418, 653353, 962836, 1306706, 2613412, 4573471, 9146942, 18293884]

約数ペア:

[(1, 18293884), (2, 9146942), (4, 4573471), (7, 2613412), (14, 1306706), (19, 962836), (28, 653353), (38, 481418), (76, 240709), (133, 137548), (137, 133532), (251, 72884), (266, 68774), (274, 66766), (502, 36442), (532, 34387), (548, 33383), (959, 19076), (1004, 18221), (1757, 10412), (1918, 9538), (2603, 7028), (3514, 5206), (3836, 4769)]