21011694

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 49496832

約数和(自身を除く): 28485138

約数列:

[1, 2, 3, 6, 11, 17, 22, 33, 34, 51, 61, 66, 102, 122, 183, 187, 307, 366, 374, 561, 614, 671, 921, 1037, 1122, 1342, 1842, 2013, 2074, 3111, 3377, 4026, 5219, 6222, 6754, 10131, 10438, 11407, 15657, 18727, 20262, 22814, 31314, 34221, 37454, 56181, 57409, 68442, 112362, 114818, 172227, 205997, 318359, 344454, 411994, 617991, 636718, 955077, 1235982, 1910154, 3501949, 7003898, 10505847, 21011694]

約数ペア:

[(1, 21011694), (2, 10505847), (3, 7003898), (6, 3501949), (11, 1910154), (17, 1235982), (22, 955077), (33, 636718), (34, 617991), (51, 411994), (61, 344454), (66, 318359), (102, 205997), (122, 172227), (183, 114818), (187, 112362), (307, 68442), (366, 57409), (374, 56181), (561, 37454), (614, 34221), (671, 31314), (921, 22814), (1037, 20262), (1122, 18727), (1342, 15657), (1842, 11407), (2013, 10438), (2074, 10131), (3111, 6754), (3377, 6222), (4026, 5219)]