21005142

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{42179}}^1$

素因数の和:42267

約数の個数: 16

約数和(自身を含む): 42517440

約数和(自身を除く): 21512298

約数列:

[1, 2, 3, 6, 83, 166, 249, 498, 42179, 84358, 126537, 253074, 3500857, 7001714, 10502571, 21005142]

約数ペア:

[(1, 21005142), (2, 10502571), (3, 7001714), (6, 3500857), (83, 253074), (166, 126537), (249, 84358), (498, 42179)]