21003669912

素因数分解:

$2^3\times 3^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{257171}}^1$

素因数の和:257304

約数の個数: 64

約数和(自身を含む): 54438168960

約数和(自身を除く): 33434499048

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 83, 123, 164, 166, 246, 249, 328, 332, 492, 498, 664, 984, 996, 1992, 3403, 6806, 10209, 13612, 20418, 27224, 40836, 81672, 257171, 514342, 771513, 1028684, 1543026, 2057368, 3086052, 6172104, 10544011, 21088022, 21345193, 31632033, 42176044, 42690386, 63264066, 64035579, 84352088, 85380772, 126528132, 128071158, 170761544, 253056264, 256142316, 512284632, 875152913, 1750305826, 2625458739, 3500611652, 5250917478, 7001223304, 10501834956, 21003669912]

約数ペア:

[(1, 21003669912), (2, 10501834956), (3, 7001223304), (4, 5250917478), (6, 3500611652), (8, 2625458739), (12, 1750305826), (24, 875152913), (41, 512284632), (82, 256142316), (83, 253056264), (123, 170761544), (164, 128071158), (166, 126528132), (246, 85380772), (249, 84352088), (328, 64035579), (332, 63264066), (492, 42690386), (498, 42176044), (664, 31632033), (984, 21345193), (996, 21088022), (1992, 10544011), (3403, 6172104), (6806, 3086052), (10209, 2057368), (13612, 1543026), (20418, 1028684), (27224, 771513), (40836, 514342), (81672, 257171)]