19915352

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 38329200

約数和(自身を除く): 18413848

約数列:

[1, 2, 4, 8, 83, 89, 166, 178, 332, 337, 356, 664, 674, 712, 1348, 2696, 7387, 14774, 27971, 29548, 29993, 55942, 59096, 59986, 111884, 119972, 223768, 239944, 2489419, 4978838, 9957676, 19915352]

約数ペア:

[(1, 19915352), (2, 9957676), (4, 4978838), (8, 2489419), (83, 239944), (89, 223768), (166, 119972), (178, 111884), (332, 59986), (337, 59096), (356, 55942), (664, 29993), (674, 29548), (712, 27971), (1348, 14774), (2696, 7387)]