19621744

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11251}}^1$

素因数の和:11368

約数の個数: 20

約数和(自身を含む): 38369320

約数和(自身を除く): 18747576

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11251, 22502, 45004, 90008, 180016, 1226359, 2452718, 4905436, 9810872, 19621744]

約数ペア:

[(1, 19621744), (2, 9810872), (4, 4905436), (8, 2452718), (16, 1226359), (109, 180016), (218, 90008), (436, 45004), (872, 22502), (1744, 11251)]