20428526

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:308

約数の個数: 32

約数和(自身を含む): 33786720

約数和(自身を除く): 13358194

約数列:

[1, 2, 17, 34, 43, 86, 89, 157, 178, 314, 731, 1462, 1513, 2669, 3026, 3827, 5338, 6751, 7654, 13502, 13973, 27946, 65059, 114767, 130118, 229534, 237541, 475082, 600839, 1201678, 10214263, 20428526]

約数ペア:

[(1, 20428526), (2, 10214263), (17, 1201678), (34, 600839), (43, 475082), (86, 237541), (89, 229534), (157, 130118), (178, 114767), (314, 65059), (731, 27946), (1462, 13973), (1513, 13502), (2669, 7654), (3026, 6751), (3827, 5338)]