19681808

素因数分解:

$2^4\times {\mathrm{227}}^1\times {\mathrm{5419}}^1$

素因数の和:5654

約数の個数: 20

約数和(自身を含む): 38308560

約数和(自身を除く): 18626752

約数列:

[1, 2, 4, 8, 16, 227, 454, 908, 1816, 3632, 5419, 10838, 21676, 43352, 86704, 1230113, 2460226, 4920452, 9840904, 19681808]

約数ペア:

[(1, 19681808), (2, 9840904), (4, 4920452), (8, 2460226), (16, 1230113), (227, 86704), (454, 43352), (908, 21676), (1816, 10838), (3632, 5419)]