21193669904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{444349}}^1$

素因数の和:444639

約数の個数: 40

約数和(自身を含む): 44961110400

約数和(自身を除く): 23767440496

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 271, 542, 1084, 2168, 2981, 4336, 5962, 11924, 23848, 47696, 444349, 888698, 1777396, 3554792, 4887839, 7109584, 9775678, 19551356, 39102712, 78205424, 120418579, 240837158, 481674316, 963348632, 1324604369, 1926697264, 2649208738, 5298417476, 10596834952, 21193669904]

約数ペア:

[(1, 21193669904), (2, 10596834952), (4, 5298417476), (8, 2649208738), (11, 1926697264), (16, 1324604369), (22, 963348632), (44, 481674316), (88, 240837158), (176, 120418579), (271, 78205424), (542, 39102712), (1084, 19551356), (2168, 9775678), (2981, 7109584), (4336, 4887839), (5962, 3554792), (11924, 1777396), (23848, 888698), (47696, 444349)]