20432955

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 33960960

約数和(自身を除く): 13528005

約数列:

[1, 3, 5, 15, 43, 79, 129, 215, 237, 395, 401, 645, 1185, 1203, 2005, 3397, 6015, 10191, 16985, 17243, 31679, 50955, 51729, 86215, 95037, 158395, 258645, 475185, 1362197, 4086591, 6810985, 20432955]

約数ペア:

[(1, 20432955), (3, 6810985), (5, 4086591), (15, 1362197), (43, 475185), (79, 258645), (129, 158395), (215, 95037), (237, 86215), (395, 51729), (401, 50955), (645, 31679), (1185, 17243), (1203, 16985), (2005, 10191), (3397, 6015)]