257427478

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{238801}}^1$

素因数の和:238828

約数の個数: 24

約数和(自身を含む): 490021704

約数和(自身を除く): 232594226

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 238801, 477602, 1671607, 2626811, 3343214, 5253622, 11701249, 18387677, 23402498, 36775354, 128713739, 257427478]

約数ペア:

[(1, 257427478), (2, 128713739), (7, 36775354), (11, 23402498), (14, 18387677), (22, 11701249), (49, 5253622), (77, 3343214), (98, 2626811), (154, 1671607), (539, 477602), (1078, 238801)]