19018988

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{719}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 35380800

約数和(自身を除く): 16361812

約数列:

[1, 2, 4, 17, 34, 68, 389, 719, 778, 1438, 1556, 2876, 6613, 12223, 13226, 24446, 26452, 48892, 279691, 559382, 1118764, 4754747, 9509494, 19018988]

約数ペア:

[(1, 19018988), (2, 9509494), (4, 4754747), (17, 1118764), (34, 559382), (68, 279691), (389, 48892), (719, 26452), (778, 24446), (1438, 13226), (1556, 12223), (2876, 6613)]