21311710

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17909}}^1$

素因数の和:17940

約数の個数: 32

約数和(自身を含む): 46422720

約数和(自身を除く): 25111010

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17909, 35818, 89545, 125363, 179090, 250726, 304453, 608906, 626815, 1253630, 1522265, 2131171, 3044530, 4262342, 10655855, 21311710]

約数ペア:

[(1, 21311710), (2, 10655855), (5, 4262342), (7, 3044530), (10, 2131171), (14, 1522265), (17, 1253630), (34, 626815), (35, 608906), (70, 304453), (85, 250726), (119, 179090), (170, 125363), (238, 89545), (595, 35818), (1190, 17909)]