21417850

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4813}}^1$

素因数の和:4914

約数の個数: 24

約数和(自身を含む): 40293180

約数和(自身を除く): 18875330

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4813, 9626, 24065, 48130, 120325, 240650, 428357, 856714, 2141785, 4283570, 10708925, 21417850]

約数ペア:

[(1, 21417850), (2, 10708925), (5, 4283570), (10, 2141785), (25, 856714), (50, 428357), (89, 240650), (178, 120325), (445, 48130), (890, 24065), (2225, 9626), (4450, 4813)]