19987436

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23027}}^1$

素因数の和:23069

約数の個数: 24

約数和(自身を含む): 41266176

約数和(自身を除く): 21278740

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23027, 46054, 92108, 161189, 322378, 644756, 713837, 1427674, 2855348, 4996859, 9993718, 19987436]

約数ペア:

[(1, 19987436), (2, 9993718), (4, 4996859), (7, 2855348), (14, 1427674), (28, 713837), (31, 644756), (62, 322378), (124, 161189), (217, 92108), (434, 46054), (868, 23027)]