21342290

素因数分解:

$2^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4243}}^1$

素因数の和:4753

約数の個数: 16

約数和(自身を含む): 38501568

約数和(自身を除く): 17159278

約数列:

[1, 2, 5, 10, 503, 1006, 2515, 4243, 5030, 8486, 21215, 42430, 2134229, 4268458, 10671145, 21342290]

約数ペア:

[(1, 21342290), (2, 10671145), (5, 4268458), (10, 2134229), (503, 42430), (1006, 21215), (2515, 8486), (4243, 5030)]