21887970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{56123}}^1$

素因数の和:56146

約数の個数: 32

約数和(自身を含む): 56572992

約数和(自身を除く): 34685022

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 56123, 112246, 168369, 280615, 336738, 561230, 729599, 841845, 1459198, 1683690, 2188797, 3647995, 4377594, 7295990, 10943985, 21887970]

約数ペア:

[(1, 21887970), (2, 10943985), (3, 7295990), (5, 4377594), (6, 3647995), (10, 2188797), (13, 1683690), (15, 1459198), (26, 841845), (30, 729599), (39, 561230), (65, 336738), (78, 280615), (130, 168369), (195, 112246), (390, 56123)]