217907144

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6961}}^1$

素因数の和:7030

約数の個数: 64

約数和(自身を含む): 514631040

約数和(自身を除く): 296723896

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 86, 91, 104, 172, 182, 301, 344, 364, 559, 602, 728, 1118, 1204, 2236, 2408, 3913, 4472, 6961, 7826, 13922, 15652, 27844, 31304, 48727, 55688, 90493, 97454, 180986, 194908, 299323, 361972, 389816, 598646, 633451, 723944, 1197292, 1266902, 2095261, 2394584, 2533804, 3891199, 4190522, 5067608, 7782398, 8381044, 15564796, 16762088, 27238393, 31129592, 54476786, 108953572, 217907144]

約数ペア:

[(1, 217907144), (2, 108953572), (4, 54476786), (7, 31129592), (8, 27238393), (13, 16762088), (14, 15564796), (26, 8381044), (28, 7782398), (43, 5067608), (52, 4190522), (56, 3891199), (86, 2533804), (91, 2394584), (104, 2095261), (172, 1266902), (182, 1197292), (301, 723944), (344, 633451), (364, 598646), (559, 389816), (602, 361972), (728, 299323), (1118, 194908), (1204, 180986), (2236, 97454), (2408, 90493), (3913, 55688), (4472, 48727), (6961, 31304), (7826, 27844), (13922, 15652)]