21862850

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^3\times {\mathrm{89}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 43691400

約数和(自身を除く): 21828550

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 89, 170, 178, 289, 425, 445, 578, 850, 890, 1445, 1513, 2225, 2890, 3026, 4450, 4913, 7225, 7565, 9826, 14450, 15130, 24565, 25721, 37825, 49130, 51442, 75650, 122825, 128605, 245650, 257210, 437257, 643025, 874514, 1286050, 2186285, 4372570, 10931425, 21862850]

約数ペア:

[(1, 21862850), (2, 10931425), (5, 4372570), (10, 2186285), (17, 1286050), (25, 874514), (34, 643025), (50, 437257), (85, 257210), (89, 245650), (170, 128605), (178, 122825), (289, 75650), (425, 51442), (445, 49130), (578, 37825), (850, 25721), (890, 24565), (1445, 15130), (1513, 14450), (2225, 9826), (2890, 7565), (3026, 7225), (4450, 4913)]