21530411182

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1\times {\mathrm{1087}}^1$

素因数の和:1705

約数の個数: 64

約数和(自身を含む): 38917324800

約数和(自身を除く): 17386913618

約数列:

[1, 2, 7, 14, 23, 46, 137, 161, 274, 322, 449, 898, 959, 1087, 1918, 2174, 3143, 3151, 6286, 6302, 7609, 10327, 15218, 20654, 22057, 25001, 44114, 50002, 61513, 72289, 123026, 144578, 148919, 175007, 297838, 350014, 430591, 488063, 861182, 976126, 1042433, 1414799, 2084866, 2829598, 3416441, 3425137, 6832882, 6850274, 9903593, 11225449, 19807186, 22450898, 23975959, 47951918, 66864631, 78578143, 133729262, 157156286, 468052417, 936104834, 1537886513, 3075773026, 10765205591, 21530411182]

約数ペア:

[(1, 21530411182), (2, 10765205591), (7, 3075773026), (14, 1537886513), (23, 936104834), (46, 468052417), (137, 157156286), (161, 133729262), (274, 78578143), (322, 66864631), (449, 47951918), (898, 23975959), (959, 22450898), (1087, 19807186), (1918, 11225449), (2174, 9903593), (3143, 6850274), (3151, 6832882), (6286, 3425137), (6302, 3416441), (7609, 2829598), (10327, 2084866), (15218, 1414799), (20654, 1042433), (22057, 976126), (25001, 861182), (44114, 488063), (50002, 430591), (61513, 350014), (72289, 297838), (123026, 175007), (144578, 148919)]