20820996

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{27541}}^1$

素因数の和:27561

約数の個数: 48

約数和(自身を含む): 61694080

約数和(自身を除く): 40873084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 27541, 55082, 82623, 110164, 165246, 192787, 247869, 330492, 385574, 495738, 578361, 743607, 771148, 991476, 1156722, 1487214, 1735083, 2313444, 2974428, 3470166, 5205249, 6940332, 10410498, 20820996]

約数ペア:

[(1, 20820996), (2, 10410498), (3, 6940332), (4, 5205249), (6, 3470166), (7, 2974428), (9, 2313444), (12, 1735083), (14, 1487214), (18, 1156722), (21, 991476), (27, 771148), (28, 743607), (36, 578361), (42, 495738), (54, 385574), (63, 330492), (84, 247869), (108, 192787), (126, 165246), (189, 110164), (252, 82623), (378, 55082), (756, 27541)]