20816946

素因数分解:

$2^1\times 3^3\times {\mathrm{389}}^1\times {\mathrm{991}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 46425600

約数和(自身を除く): 25608654

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389, 778, 991, 1167, 1982, 2334, 2973, 3501, 5946, 7002, 8919, 10503, 17838, 21006, 26757, 53514, 385499, 770998, 1156497, 2312994, 3469491, 6938982, 10408473, 20816946]

約数ペア:

[(1, 20816946), (2, 10408473), (3, 6938982), (6, 3469491), (9, 2312994), (18, 1156497), (27, 770998), (54, 385499), (389, 53514), (778, 26757), (991, 21006), (1167, 17838), (1982, 10503), (2334, 8919), (2973, 7002), (3501, 5946)]