21575814

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{8923}}^1$

素因数の和:8972

約数の個数: 32

約数和(自身を含む): 47975424

約数和(自身を除く): 26399610

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 8923, 17846, 26769, 53538, 115999, 231998, 276613, 347997, 553226, 695994, 829839, 1659678, 3595969, 7191938, 10787907, 21575814]

約数ペア:

[(1, 21575814), (2, 10787907), (3, 7191938), (6, 3595969), (13, 1659678), (26, 829839), (31, 695994), (39, 553226), (62, 347997), (78, 276613), (93, 231998), (186, 115999), (403, 53538), (806, 26769), (1209, 17846), (2418, 8923)]