19004636

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 40454400

約数和(自身を除く): 21449764

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 139, 257, 266, 278, 514, 532, 556, 973, 1028, 1799, 1946, 2641, 3598, 3892, 4883, 5282, 7196, 9766, 10564, 18487, 19532, 34181, 35723, 36974, 68362, 71446, 73948, 136724, 142892, 250061, 500122, 678737, 1000244, 1357474, 2714948, 4751159, 9502318, 19004636]

約数ペア:

[(1, 19004636), (2, 9502318), (4, 4751159), (7, 2714948), (14, 1357474), (19, 1000244), (28, 678737), (38, 500122), (76, 250061), (133, 142892), (139, 136724), (257, 73948), (266, 71446), (278, 68362), (514, 36974), (532, 35723), (556, 34181), (973, 19532), (1028, 18487), (1799, 10564), (1946, 9766), (2641, 7196), (3598, 5282), (3892, 4883)]