21557210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4933}}^1$

素因数の和:4982

約数の個数: 32

約数和(自身を含む): 42629760

約数和(自身を除く): 21072550

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 95, 115, 190, 230, 437, 874, 2185, 4370, 4933, 9866, 24665, 49330, 93727, 113459, 187454, 226918, 468635, 567295, 937270, 1134590, 2155721, 4311442, 10778605, 21557210]

約数ペア:

[(1, 21557210), (2, 10778605), (5, 4311442), (10, 2155721), (19, 1134590), (23, 937270), (38, 567295), (46, 468635), (95, 226918), (115, 187454), (190, 113459), (230, 93727), (437, 49330), (874, 24665), (2185, 9866), (4370, 4933)]