28783426

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 51004800

約数和(自身を除く): 22221374

約数列:

[1, 2, 7, 14, 43, 86, 137, 274, 301, 349, 602, 698, 959, 1918, 2443, 4886, 5891, 11782, 15007, 30014, 41237, 47813, 82474, 95626, 105049, 210098, 334691, 669382, 2055959, 4111918, 14391713, 28783426]

約数ペア:

[(1, 28783426), (2, 14391713), (7, 4111918), (14, 2055959), (43, 669382), (86, 334691), (137, 210098), (274, 105049), (301, 95626), (349, 82474), (602, 47813), (698, 41237), (959, 30014), (1918, 15007), (2443, 11782), (4886, 5891)]