19991342

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:744

約数の個数: 32

約数和(自身を含む): 35917824

約数和(自身を除く): 15926482

約数列:

[1, 2, 7, 14, 31, 62, 73, 146, 217, 434, 511, 631, 1022, 1262, 2263, 4417, 4526, 8834, 15841, 19561, 31682, 39122, 46063, 92126, 136927, 273854, 322441, 644882, 1427953, 2855906, 9995671, 19991342]

約数ペア:

[(1, 19991342), (2, 9995671), (7, 2855906), (14, 1427953), (31, 644882), (62, 322441), (73, 273854), (146, 136927), (217, 92126), (434, 46063), (511, 39122), (631, 31682), (1022, 19561), (1262, 15841), (2263, 8834), (4417, 4526)]