19421896

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 40548060

約数和(自身を除く): 21126164

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 101, 104, 172, 202, 344, 404, 559, 808, 1118, 1313, 1849, 2236, 2626, 3698, 4343, 4472, 5252, 7396, 8686, 10504, 14792, 17372, 24037, 34744, 48074, 56459, 96148, 112918, 186749, 192296, 225836, 373498, 451672, 746996, 1493992, 2427737, 4855474, 9710948, 19421896]

約数ペア:

[(1, 19421896), (2, 9710948), (4, 4855474), (8, 2427737), (13, 1493992), (26, 746996), (43, 451672), (52, 373498), (86, 225836), (101, 192296), (104, 186749), (172, 112918), (202, 96148), (344, 56459), (404, 48074), (559, 34744), (808, 24037), (1118, 17372), (1313, 14792), (1849, 10504), (2236, 8686), (2626, 7396), (3698, 5252), (4343, 4472)]