19639648

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2099

約数の個数: 48

約数和(自身を含む): 45239040

約数和(自身を除く): 25599392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 112, 172, 224, 301, 344, 602, 688, 1204, 1376, 2039, 2408, 4078, 4816, 8156, 9632, 14273, 16312, 28546, 32624, 57092, 65248, 87677, 114184, 175354, 228368, 350708, 456736, 613739, 701416, 1227478, 1402832, 2454956, 2805664, 4909912, 9819824, 19639648]

約数ペア:

[(1, 19639648), (2, 9819824), (4, 4909912), (7, 2805664), (8, 2454956), (14, 1402832), (16, 1227478), (28, 701416), (32, 613739), (43, 456736), (56, 350708), (86, 228368), (112, 175354), (172, 114184), (224, 87677), (301, 65248), (344, 57092), (602, 32624), (688, 28546), (1204, 16312), (1376, 14273), (2039, 9632), (2408, 8156), (4078, 4816)]