21000913278

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1\times {\mathrm{245849}}^1$

素因数の和:246496

約数の個数: 32

約数和(自身を含む): 43898976000

約数和(自身を除く): 22898062722

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 619, 1238, 1857, 3714, 14237, 28474, 42711, 85422, 245849, 491698, 737547, 1475094, 5654527, 11309054, 16963581, 33927162, 152180531, 304361062, 456541593, 913083186, 3500152213, 7000304426, 10500456639, 21000913278]

約数ペア:

[(1, 21000913278), (2, 10500456639), (3, 7000304426), (6, 3500152213), (23, 913083186), (46, 456541593), (69, 304361062), (138, 152180531), (619, 33927162), (1238, 16963581), (1857, 11309054), (3714, 5654527), (14237, 1475094), (28474, 737547), (42711, 491698), (85422, 245849)]