20717368

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{12757}}^1$

素因数の和:12799

約数の個数: 32

約数和(自身を含む): 45928800

約数和(自身を除く): 25211432

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 12757, 25514, 51028, 89299, 102056, 178598, 357196, 369953, 714392, 739906, 1479812, 2589671, 2959624, 5179342, 10358684, 20717368]

約数ペア:

[(1, 20717368), (2, 10358684), (4, 5179342), (7, 2959624), (8, 2589671), (14, 1479812), (28, 739906), (29, 714392), (56, 369953), (58, 357196), (116, 178598), (203, 102056), (232, 89299), (406, 51028), (812, 25514), (1624, 12757)]