21452807930

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4751}}^1\times {\mathrm{10501}}^1$

素因数の和:15302

約数の個数: 32

約数和(自身を含む): 39525159168

約数和(自身を除く): 18072351238

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 4751, 9502, 10501, 21002, 23755, 47510, 52505, 105010, 204293, 408586, 451543, 903086, 1021465, 2042930, 2257715, 4515430, 49890251, 99780502, 249451255, 498902510, 2145280793, 4290561586, 10726403965, 21452807930]

約数ペア:

[(1, 21452807930), (2, 10726403965), (5, 4290561586), (10, 2145280793), (43, 498902510), (86, 249451255), (215, 99780502), (430, 49890251), (4751, 4515430), (9502, 2257715), (10501, 2042930), (21002, 1021465), (23755, 903086), (47510, 451543), (52505, 408586), (105010, 204293)]