20471655

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1935

約数の個数: 32

約数和(自身を含む): 35506944

約数和(自身を除く): 15035289

約数列:

[1, 3, 5, 15, 17, 43, 51, 85, 129, 215, 255, 645, 731, 1867, 2193, 3655, 5601, 9335, 10965, 28005, 31739, 80281, 95217, 158695, 240843, 401405, 476085, 1204215, 1364777, 4094331, 6823885, 20471655]

約数ペア:

[(1, 20471655), (3, 6823885), (5, 4094331), (15, 1364777), (17, 1204215), (43, 476085), (51, 401405), (85, 240843), (129, 158695), (215, 95217), (255, 80281), (645, 31739), (731, 28005), (1867, 10965), (2193, 9335), (3655, 5601)]