20717304447

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{859}}^1\times {\mathrm{5443}}^1$

素因数の和:6523

約数の個数: 32

約数和(自身を含む): 31761602560

約数和(自身を除く): 11044298113

約数列:

[1, 3, 7, 21, 211, 633, 859, 1477, 2577, 4431, 5443, 6013, 16329, 18039, 38101, 114303, 181249, 543747, 1148473, 1268743, 3445419, 3806229, 4675537, 8039311, 14026611, 24117933, 32728759, 98186277, 986538307, 2959614921, 6905768149, 20717304447]

約数ペア:

[(1, 20717304447), (3, 6905768149), (7, 2959614921), (21, 986538307), (211, 98186277), (633, 32728759), (859, 24117933), (1477, 14026611), (2577, 8039311), (4431, 4675537), (5443, 3806229), (6013, 3445419), (16329, 1268743), (18039, 1148473), (38101, 543747), (114303, 181249)]