21238372

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 41150592

約数和(自身を除く): 19912220

約数列:

[1, 2, 4, 17, 34, 53, 68, 71, 83, 106, 142, 166, 212, 284, 332, 901, 1207, 1411, 1802, 2414, 2822, 3604, 3763, 4399, 4828, 5644, 5893, 7526, 8798, 11786, 15052, 17596, 23572, 63971, 74783, 100181, 127942, 149566, 200362, 255884, 299132, 312329, 400724, 624658, 1249316, 5309593, 10619186, 21238372]

約数ペア:

[(1, 21238372), (2, 10619186), (4, 5309593), (17, 1249316), (34, 624658), (53, 400724), (68, 312329), (71, 299132), (83, 255884), (106, 200362), (142, 149566), (166, 127942), (212, 100181), (284, 74783), (332, 63971), (901, 23572), (1207, 17596), (1411, 15052), (1802, 11786), (2414, 8798), (2822, 7526), (3604, 5893), (3763, 5644), (4399, 4828)]