21383380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{20173}}^1$

素因数の和:20235

約数の個数: 24

約数和(自身を含む): 45754632

約数和(自身を除く): 24371252

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 20173, 40346, 80692, 100865, 201730, 403460, 1069169, 2138338, 4276676, 5345845, 10691690, 21383380]

約数ペア:

[(1, 21383380), (2, 10691690), (4, 5345845), (5, 4276676), (10, 2138338), (20, 1069169), (53, 403460), (106, 201730), (212, 100865), (265, 80692), (530, 40346), (1060, 20173)]