19738138

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{251}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 35054208

約数和(自身を除く): 15316070

約数列:

[1, 2, 7, 14, 41, 82, 137, 251, 274, 287, 502, 574, 959, 1757, 1918, 3514, 5617, 10291, 11234, 20582, 34387, 39319, 68774, 72037, 78638, 144074, 240709, 481418, 1409867, 2819734, 9869069, 19738138]

約数ペア:

[(1, 19738138), (2, 9869069), (7, 2819734), (14, 1409867), (41, 481418), (82, 240709), (137, 144074), (251, 78638), (274, 72037), (287, 68774), (502, 39319), (574, 34387), (959, 20582), (1757, 11234), (1918, 10291), (3514, 5617)]