21430010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{787}}^1$

素因数の和:1190

約数の個数: 32

約数和(自身を含む): 44254080

約数和(自身を除く): 22824070

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 389, 778, 787, 1574, 1945, 2723, 3890, 3935, 5446, 5509, 7870, 11018, 13615, 27230, 27545, 55090, 306143, 612286, 1530715, 2143001, 3061430, 4286002, 10715005, 21430010]

約数ペア:

[(1, 21430010), (2, 10715005), (5, 4286002), (7, 3061430), (10, 2143001), (14, 1530715), (35, 612286), (70, 306143), (389, 55090), (778, 27545), (787, 27230), (1574, 13615), (1945, 11018), (2723, 7870), (3890, 5509), (3935, 5446)]