19689628

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5059}}^1$

素因数の和:5209

約数の個数: 24

約数和(自身を含む): 39670400

約数和(自身を除く): 19980772

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5059, 10118, 20236, 35413, 70826, 141652, 703201, 1406402, 2812804, 4922407, 9844814, 19689628]

約数ペア:

[(1, 19689628), (2, 9844814), (4, 4922407), (7, 2812804), (14, 1406402), (28, 703201), (139, 141652), (278, 70826), (556, 35413), (973, 20236), (1946, 10118), (3892, 5059)]