21530296

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 45489600

約数和(自身を除く): 23959304

約数列:

[1, 2, 4, 8, 17, 29, 34, 53, 58, 68, 103, 106, 116, 136, 206, 212, 232, 412, 424, 493, 824, 901, 986, 1537, 1751, 1802, 1972, 2987, 3074, 3502, 3604, 3944, 5459, 5974, 6148, 7004, 7208, 10918, 11948, 12296, 14008, 21836, 23896, 26129, 43672, 50779, 52258, 92803, 101558, 104516, 158311, 185606, 203116, 209032, 316622, 371212, 406232, 633244, 742424, 1266488, 2691287, 5382574, 10765148, 21530296]

約数ペア:

[(1, 21530296), (2, 10765148), (4, 5382574), (8, 2691287), (17, 1266488), (29, 742424), (34, 633244), (53, 406232), (58, 371212), (68, 316622), (103, 209032), (106, 203116), (116, 185606), (136, 158311), (206, 104516), (212, 101558), (232, 92803), (412, 52258), (424, 50779), (493, 43672), (824, 26129), (901, 23896), (986, 21836), (1537, 14008), (1751, 12296), (1802, 11948), (1972, 10918), (2987, 7208), (3074, 7004), (3502, 6148), (3604, 5974), (3944, 5459)]