31294263

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{613}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 59415552

約数和(自身を除く): 28121289

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 143, 187, 221, 231, 273, 357, 429, 561, 613, 663, 1001, 1309, 1547, 1839, 2431, 3003, 3927, 4291, 4641, 6743, 7293, 7969, 10421, 12873, 17017, 20229, 23907, 31263, 47201, 51051, 55783, 72947, 87659, 114631, 135473, 141603, 167349, 218841, 262977, 343893, 406419, 613613, 802417, 948311, 1490203, 1840839, 2407251, 2844933, 4470609, 10431421, 31294263]

約数ペア:

[(1, 31294263), (3, 10431421), (7, 4470609), (11, 2844933), (13, 2407251), (17, 1840839), (21, 1490203), (33, 948311), (39, 802417), (51, 613613), (77, 406419), (91, 343893), (119, 262977), (143, 218841), (187, 167349), (221, 141603), (231, 135473), (273, 114631), (357, 87659), (429, 72947), (561, 55783), (613, 51051), (663, 47201), (1001, 31263), (1309, 23907), (1547, 20229), (1839, 17017), (2431, 12873), (3003, 10421), (3927, 7969), (4291, 7293), (4641, 6743)]