210859378

素因数分解:

$2^1\times {\mathrm{19}}^4\times {\mathrm{809}}^1$

素因数の和:887

約数の個数: 20

約数和(自身を含む): 334273230

約数和(自身を除く): 123413852

約数列:

[1, 2, 19, 38, 361, 722, 809, 1618, 6859, 13718, 15371, 30742, 130321, 260642, 292049, 584098, 5548931, 11097862, 105429689, 210859378]

約数ペア:

[(1, 210859378), (2, 105429689), (19, 11097862), (38, 5548931), (361, 584098), (722, 292049), (809, 260642), (1618, 130321), (6859, 30742), (13718, 15371)]