21863900

素因数分解:

$2^2\times 5^2\times {\mathrm{131}}^1\times {\mathrm{1669}}^1$

素因数の和:1814

約数の個数: 36

約数和(自身を含む): 47835480

約数和(自身を除く): 25971580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 131, 262, 524, 655, 1310, 1669, 2620, 3275, 3338, 6550, 6676, 8345, 13100, 16690, 33380, 41725, 83450, 166900, 218639, 437278, 874556, 1093195, 2186390, 4372780, 5465975, 10931950, 21863900]

約数ペア:

[(1, 21863900), (2, 10931950), (4, 5465975), (5, 4372780), (10, 2186390), (20, 1093195), (25, 874556), (50, 437278), (100, 218639), (131, 166900), (262, 83450), (524, 41725), (655, 33380), (1310, 16690), (1669, 13100), (2620, 8345), (3275, 6676), (3338, 6550)]