21286116

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{20389}}^1$

素因数の和:20428

約数の個数: 36

約数和(自身を含む): 55664700

約数和(自身を除く): 34378584

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 20389, 40778, 61167, 81556, 122334, 183501, 244668, 367002, 591281, 734004, 1182562, 1773843, 2365124, 3547686, 5321529, 7095372, 10643058, 21286116]

約数ペア:

[(1, 21286116), (2, 10643058), (3, 7095372), (4, 5321529), (6, 3547686), (9, 2365124), (12, 1773843), (18, 1182562), (29, 734004), (36, 591281), (58, 367002), (87, 244668), (116, 183501), (174, 122334), (261, 81556), (348, 61167), (522, 40778), (1044, 20389)]