20868960476

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1398349}}^1$

素因数の和:1398414

約数の個数: 48

約数和(自身を含む): 46044868800

約数和(自身を除く): 25175908324

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 2132, 3731, 7462, 14924, 1398349, 2796698, 5593396, 9788443, 18178537, 19576886, 36357074, 39153772, 57332309, 72714148, 114664618, 127249759, 229329236, 254499518, 401326163, 508999036, 745320017, 802652326, 1490640034, 1605304652, 2981280068, 5217240119, 10434480238, 20868960476]

約数ペア:

[(1, 20868960476), (2, 10434480238), (4, 5217240119), (7, 2981280068), (13, 1605304652), (14, 1490640034), (26, 802652326), (28, 745320017), (41, 508999036), (52, 401326163), (82, 254499518), (91, 229329236), (164, 127249759), (182, 114664618), (287, 72714148), (364, 57332309), (533, 39153772), (574, 36357074), (1066, 19576886), (1148, 18178537), (2132, 9788443), (3731, 5593396), (7462, 2796698), (14924, 1398349)]