21406428

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{14503}}^1$

素因数の和:14554

約数の個数: 36

約数和(自身を含む): 55434288

約数和(自身を除く): 34027860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 82, 123, 164, 246, 369, 492, 738, 1476, 14503, 29006, 43509, 58012, 87018, 130527, 174036, 261054, 522108, 594623, 1189246, 1783869, 2378492, 3567738, 5351607, 7135476, 10703214, 21406428]

約数ペア:

[(1, 21406428), (2, 10703214), (3, 7135476), (4, 5351607), (6, 3567738), (9, 2378492), (12, 1783869), (18, 1189246), (36, 594623), (41, 522108), (82, 261054), (123, 174036), (164, 130527), (246, 87018), (369, 58012), (492, 43509), (738, 29006), (1476, 14503)]