21977982

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{93923}}^1$

素因数の和:93944

約数の個数: 24

約数和(自身を含む): 51282504

約数和(自身を除く): 29304522

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 93923, 187846, 281769, 563538, 845307, 1220999, 1690614, 2441998, 3662997, 7325994, 10988991, 21977982]

約数ペア:

[(1, 21977982), (2, 10988991), (3, 7325994), (6, 3662997), (9, 2441998), (13, 1690614), (18, 1220999), (26, 845307), (39, 563538), (78, 281769), (117, 187846), (234, 93923)]