31709727

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 56160000

約数和(自身を除く): 24450273

約数列:

[1, 3, 7, 9, 19, 21, 57, 59, 63, 133, 171, 177, 399, 413, 449, 531, 1121, 1197, 1239, 1347, 3143, 3363, 3717, 4041, 7847, 8531, 9429, 10089, 23541, 25593, 26491, 28287, 59717, 70623, 76779, 79473, 179151, 185437, 238419, 503329, 537453, 556311, 1509987, 1668933, 3523303, 4529961, 10569909, 31709727]

約数ペア:

[(1, 31709727), (3, 10569909), (7, 4529961), (9, 3523303), (19, 1668933), (21, 1509987), (57, 556311), (59, 537453), (63, 503329), (133, 238419), (171, 185437), (177, 179151), (399, 79473), (413, 76779), (449, 70623), (531, 59717), (1121, 28287), (1197, 26491), (1239, 25593), (1347, 23541), (3143, 10089), (3363, 9429), (3717, 8531), (4041, 7847)]