21082210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 43390080

約数和(自身を除く): 22307870

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 61, 85, 95, 107, 122, 170, 190, 214, 305, 323, 535, 610, 646, 1037, 1070, 1159, 1615, 1819, 2033, 2074, 2318, 3230, 3638, 4066, 5185, 5795, 6527, 9095, 10165, 10370, 11590, 13054, 18190, 19703, 20330, 32635, 34561, 39406, 65270, 69122, 98515, 110959, 124013, 172805, 197030, 221918, 248026, 345610, 554795, 620065, 1109590, 1240130, 2108221, 4216442, 10541105, 21082210]

約数ペア:

[(1, 21082210), (2, 10541105), (5, 4216442), (10, 2108221), (17, 1240130), (19, 1109590), (34, 620065), (38, 554795), (61, 345610), (85, 248026), (95, 221918), (107, 197030), (122, 172805), (170, 124013), (190, 110959), (214, 98515), (305, 69122), (323, 65270), (535, 39406), (610, 34561), (646, 32635), (1037, 20330), (1070, 19703), (1159, 18190), (1615, 13054), (1819, 11590), (2033, 10370), (2074, 10165), (2318, 9095), (3230, 6527), (3638, 5795), (4066, 5185)]