21164176

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6329}}^1$

素因数の和:6367

約数の個数: 40

約数和(自身を含む): 47095200

約数和(自身を除く): 25931024

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6329, 12658, 25316, 50632, 69619, 101264, 120251, 139238, 240502, 278476, 481004, 556952, 962008, 1113904, 1322761, 1924016, 2645522, 5291044, 10582088, 21164176]

約数ペア:

[(1, 21164176), (2, 10582088), (4, 5291044), (8, 2645522), (11, 1924016), (16, 1322761), (19, 1113904), (22, 962008), (38, 556952), (44, 481004), (76, 278476), (88, 240502), (152, 139238), (176, 120251), (209, 101264), (304, 69619), (418, 50632), (836, 25316), (1672, 12658), (3344, 6329)]