19782526

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^2$

素因数の和:324

約数の個数: 24

約数和(自身を含む): 32671296

約数和(自身を除く): 12888770

約数列:

[1, 2, 17, 31, 34, 62, 137, 274, 527, 1054, 2329, 4247, 4658, 8494, 18769, 37538, 72199, 144398, 319073, 581839, 638146, 1163678, 9891263, 19782526]

約数ペア:

[(1, 19782526), (2, 9891263), (17, 1163678), (31, 638146), (34, 581839), (62, 319073), (137, 144398), (274, 72199), (527, 37538), (1054, 18769), (2329, 8494), (4247, 4658)]