19506688

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{1229}}^1$

素因数の和:1278

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 20758592

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1229, 1984, 2458, 3968, 4916, 7936, 9832, 15872, 19664, 38099, 39328, 76198, 78656, 152396, 157312, 304792, 314624, 609584, 629248, 1219168, 2438336, 4876672, 9753344, 19506688]

約数ペア:

[(1, 19506688), (2, 9753344), (4, 4876672), (8, 2438336), (16, 1219168), (31, 629248), (32, 609584), (62, 314624), (64, 304792), (124, 157312), (128, 152396), (248, 78656), (256, 76198), (496, 39328), (512, 38099), (992, 19664), (1229, 15872), (1984, 9832), (2458, 7936), (3968, 4916)]